338487977832 has 128 divisors (see below), whose sum is σ = 894499200000. Its totient is φ = 106442919936.

The previous prime is 338487977801. The next prime is 338487977833. The reversal of 338487977832 is 238779784833.

It is a super-2 number, since 2×338487977832² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (338487977833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199226919 + ... + 199228617.

It is an arithmetic number, because the mean of its divisors is an integer number (6988275000).

Almost surely, 2^338487977832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 338487977832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447249600000).

338487977832 is an abundant number, since it is smaller than the sum of its proper divisors (556011222168).

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

338487977832 is a wasteful number, since it uses less digits than its factorization.

338487977832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3303 (or 3299 counting only the distinct ones).

The product of its digits is 341397504, while the sum is 69.

The spelling of 338487977832 in words is "three hundred thirty-eight billion, four hundred eighty-seven million, nine hundred seventy-seven thousand, eight hundred thirty-two".