3157519812 has 12 divisors (see below), whose sum is σ = 7367546256. Its totient is φ = 1052506600.

The previous prime is 3157519811. The next prime is 3157519819. The reversal of 3157519812 is 2189157513.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (3157519811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131563314 + ... + 131563337.

It is an arithmetic number, because the mean of its divisors is an integer number (613962188).

Almost surely, 2^3157519812 is an apocalyptic number.

It is an amenable number.

3157519812 is an abundant number, since it is smaller than the sum of its proper divisors (4210026444).

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

3157519812 is a wasteful number, since it uses less digits than its factorization.

3157519812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263126658 (or 263126656 counting only the distinct ones).

The product of its digits is 75600, while the sum is 42.

The square root of 3157519812 is about 56191.8126776490. The cubic root of 3157519812 is about 1467.0627656294.

The spelling of 3157519812 in words is "three billion, one hundred fifty-seven million, five hundred nineteen thousand, eight hundred twelve".