4000157971792 has 40 divisors (see below), whose sum is σ = 7972759474376. Its totient is φ = 1942848032256.

The previous prime is 4000157971723. The next prime is 4000157971813. The reversal of 4000157971792 is 2971797510004.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 113881951296 + 3886276020496 = 337464^2 + 1971364^2 .

It is a congruent number.

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, 5148543 + ... + 5874334.

Almost surely, 2^{4000157971792} is an apocalyptic number.

It is an amenable number.

4000157971792 is a deficient number, since it is larger than the sum of its proper divisors (3972601502584).

4000157971792 is a wasteful number, since it uses less digits than its factorization.

4000157971792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11023535 (or 11023529 counting only the distinct ones).

The product of its (nonzero) digits is 1111320, while the sum is 52.

The spelling of 4000157971792 in words is "four trillion, one hundred fifty-seven million, nine hundred seventy-one thousand, seven hundred ninety-two".