15790040857 has 8 divisors (see below), whose sum is σ = 16324200512. Its totient is φ = 15261534000.

The previous prime is 15790040837. The next prime is 15790040873. The reversal of 15790040857 is 75804009751.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15790040857 - 2⁷ = 15790040729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15790040837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1407519 + ... + 1418692.

It is an arithmetic number, because the mean of its divisors is an integer number (2040525064).

Almost surely, 2^15790040857 is an apocalyptic number.

It is an amenable number.

15790040857 is a deficient number, since it is larger than the sum of its proper divisors (534159655).

15790040857 is a wasteful number, since it uses less digits than its factorization.

15790040857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826399.

The product of its (nonzero) digits is 352800, while the sum is 46.

The spelling of 15790040857 in words is "fifteen billion, seven hundred ninety million, forty thousand, eight hundred fifty-seven".