7899426156 has 24 divisors (see below), whose sum is σ = 18564602560. Its totient is φ = 2614198032.

The previous prime is 7899426137. The next prime is 7899426163. The reversal of 7899426156 is 6516249987.

It is a junction number, because it is equal to n+sod(n) for n = 7899426096 and 7899426105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2366266 + ... + 2369601.

Almost surely, 2^7899426156 is an apocalyptic number.

It is an amenable number.

7899426156 is an abundant number, since it is smaller than the sum of its proper divisors (10665176404).

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

7899426156 is a wasteful number, since it uses less digits than its factorization.

7899426156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4736013 (or 4736011 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 57.

The square root of 7899426156 is about 88878.7159898251. The cubic root of 7899426156 is about 1991.5834770884.

The spelling of 7899426156 in words is "seven billion, eight hundred ninety-nine million, four hundred twenty-six thousand, one hundred fifty-six".