8156534372 has 24 divisors (see below), whose sum is σ = 16839298560. Its totient is φ = 3382894080.

The previous prime is 8156534357. The next prime is 8156534387. The reversal of 8156534372 is 2734356518.

It is an interprime number because it is at equal distance from previous prime (8156534357) and next prime (8156534387).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4697597 + ... + 4699332.

It is an arithmetic number, because the mean of its divisors is an integer number (701637440).

Almost surely, 2^8156534372 is an apocalyptic number.

It is an amenable number.

8156534372 is an abundant number, since it is smaller than the sum of its proper divisors (8682764188).

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

8156534372 is a wasteful number, since it uses less digits than its factorization.

8156534372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9396971 (or 9396969 counting only the distinct ones).

The product of its digits is 604800, while the sum is 44.

The square root of 8156534372 is about 90313.5337144993. The cubic root of 8156534372 is about 2012.9603640678.

The spelling of 8156534372 in words is "eight billion, one hundred fifty-six million, five hundred thirty-four thousand, three hundred seventy-two".