308485630656 has 1344 divisors, whose sum is σ = 1209945784320. Its totient is φ = 75784273920.

The previous prime is 308485630597. The next prime is 308485630657. The reversal of 308485630656 is 656036584803.

It is a happy number.

308485630656 is a `hidden beast` number, since 30 + 8 + 48 + 563 + 0 + 6 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (308485630657) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1090055091 + ... + 1090055373.

It is an arithmetic number, because the mean of its divisors is an integer number (900257280).

Almost surely, 2^308485630656 is an apocalyptic number.

308485630656 is a gapful number since it is divisible by the number (36) 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 308485630656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (604972892160).

308485630656 is an abundant number, since it is smaller than the sum of its proper divisors (901460153664).

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

308485630656 is a wasteful number, since it uses less digits than its factorization.

308485630656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 54.

The spelling of 308485630656 in words is "three hundred eight billion, four hundred eighty-five million, six hundred thirty thousand, six hundred fifty-six".