3957156559 has 8 divisors (see below), whose sum is σ = 4023077328. Its totient is φ = 3891269760.

The previous prime is 3957156523. The next prime is 3957156569. The reversal of 3957156559 is 9556517593.

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 3957156559 - 2¹⁵ = 3957123791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3957156569) 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, 352359 + ... + 363415.

It is an arithmetic number, because the mean of its divisors is an integer number (502884666).

Almost surely, 2^3957156559 is an apocalyptic number.

3957156559 is a deficient number, since it is larger than the sum of its proper divisors (65920769).

3957156559 is a wasteful number, since it uses less digits than its factorization.

3957156559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16985.

The product of its digits is 6378750, while the sum is 55.

The square root of 3957156559 is about 62905.9342113286. The cubic root of 3957156559 is about 1581.7132192360.

The spelling of 3957156559 in words is "three billion, nine hundred fifty-seven million, one hundred fifty-six thousand, five hundred fifty-nine".