308877989472 has 960 divisors, whose sum is σ = 1081904947200. Its totient is φ = 85593231360.

The previous prime is 308877989471. The next prime is 308877989489. The reversal of 308877989472 is 274989778803.

308877989472 is a `hidden beast` number, since 3 + 0 + 8 + 8 + 7 + 79 + 89 + 472 = 666.

It is a super-2 number, since 2×308877989472² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 308877989472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308877989471) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1567908478 + ... + 1567908674.

It is an arithmetic number, because the mean of its divisors is an integer number (1126984320).

Almost surely, 2^308877989472 is an apocalyptic number.

308877989472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 308877989472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (540952473600).

308877989472 is an abundant number, since it is smaller than the sum of its proper divisors (773026957728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

308877989472 is a wasteful number, since it uses less digits than its factorization.

308877989472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361 (or 344 counting only the distinct ones).

The product of its (nonzero) digits is 341397504, while the sum is 72.

The spelling of 308877989472 in words is "three hundred eight billion, eight hundred seventy-seven million, nine hundred eighty-nine thousand, four hundred seventy-two".