3128812913541 has 64 divisors (see below), whose sum is σ = 5039027159040. Its totient is φ = 1688185076160.

The previous prime is 3128812913533. The next prime is 3128812913563. The reversal of 3128812913541 is 1453192188213.

It is a happy number.

It is not a de Polignac number, because 3128812913541 - 2³ = 3128812913533 is a prime.

It is a super-2 number, since 2×3128812913541² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128812913741) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 50441056 + ... + 50503046.

It is an arithmetic number, because the mean of its divisors is an integer number (78734799360).

Almost surely, 2^{3128812913541} is an apocalyptic number.

It is an amenable number.

3128812913541 is a deficient number, since it is larger than the sum of its proper divisors (1910214245499).

3128812913541 is a wasteful number, since it uses less digits than its factorization.

3128812913541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63366.

The product of its digits is 414720, while the sum is 48.

The spelling of 3128812913541 in words is "three trillion, one hundred twenty-eight billion, eight hundred twelve million, nine hundred thirteen thousand, five hundred forty-one".