3157656540 has 24 divisors (see below), whose sum is σ = 8841438480. Its totient is φ = 842041728.

The previous prime is 3157656529. The next prime is 3157656571. The reversal of 3157656540 is 456567513.

3157656540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3157656492 and 3157656501.

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, 26313745 + ... + 26313864.

It is an arithmetic number, because the mean of its divisors is an integer number (368393270).

Almost surely, 2^3157656540 is an apocalyptic number.

3157656540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3157656540 is an abundant number, since it is smaller than the sum of its proper divisors (5683781940).

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

3157656540 is a wasteful number, since it uses less digits than its factorization.

3157656540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52627621 (or 52627619 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 42.

The square root of 3157656540 is about 56193.0292829992. The cubic root of 3157656540 is about 1467.0839410745.

The spelling of 3157656540 in words is "three billion, one hundred fifty-seven million, six hundred fifty-six thousand, five hundred forty".