8156757283938 has 48 divisors (see below), whose sum is σ = 17770330685952. Its totient is φ = 2703948900000.

The previous prime is 8156757283931. The next prime is 8156757283957. The reversal of 8156757283938 is 8393827576518.

8156757283938 is a `hidden beast` number, since 8 + 1 + 567 + 5 + 7 + 28 + 3 + 9 + 38 = 666.

It is not an unprimeable number, because it can be changed into a prime (8156757283931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12403513 + ... + 13044563.

It is an arithmetic number, because the mean of its divisors is an integer number (370215222624).

Almost surely, 2^{8156757283938} is an apocalyptic number.

8156757283938 is an abundant number, since it is smaller than the sum of its proper divisors (9613573402014).

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

8156757283938 is a wasteful number, since it uses less digits than its factorization.

8156757283938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644951 (or 644948 counting only the distinct ones).

The product of its digits is 609638400, while the sum is 72.

The spelling of 8156757283938 in words is "eight trillion, one hundred fifty-six billion, seven hundred fifty-seven million, two hundred eighty-three thousand, nine hundred thirty-eight".