8156494488 has 64 divisors (see below), whose sum is σ = 20528640000. Its totient is φ = 2700572672.

The previous prime is 8156494487. The next prime is 8156494513. The reversal of 8156494488 is 8844946518.

It is a happy number.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8156494487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2573881 + ... + 2577047.

It is an arithmetic number, because the mean of its divisors is an integer number (320760000).

Almost surely, 2^8156494488 is an apocalyptic number.

It is an amenable number.

8156494488 is an abundant number, since it is smaller than the sum of its proper divisors (12372145512).

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

8156494488 is a wasteful number, since it uses less digits than its factorization.

8156494488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864 (or 3860 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 57.

The square root of 8156494488 is about 90313.3129056841. The cubic root of 8156494488 is about 2012.9570830566.

The spelling of 8156494488 in words is "eight billion, one hundred fifty-six million, four hundred ninety-four thousand, four hundred eighty-eight".