3128123552715 has 24 divisors (see below), whose sum is σ = 6196663800288. Its totient is φ = 1429999338240.

The previous prime is 3128123552707. The next prime is 3128123552779. The reversal of 3128123552715 is 5172553218213.

3128123552715 is a `hidden beast` number, since 3 + 1 + 2 + 8 + 1 + 23 + 552 + 71 + 5 = 666.

It is not a de Polignac number, because 3128123552715 - 2³ = 3128123552707 is a prime.

It is a super-2 number, since 2×3128123552715² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4965275166 + ... + 4965275795.

It is an arithmetic number, because the mean of its divisors is an integer number (258194325012).

Almost surely, 2^{3128123552715} is an apocalyptic number.

3128123552715 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3128123552715 is a deficient number, since it is larger than the sum of its proper divisors (3068540247573).

3128123552715 is a wasteful number, since it uses less digits than its factorization.

3128123552715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9930550979 (or 9930550976 counting only the distinct ones).

The product of its digits is 504000, while the sum is 45.

The spelling of 3128123552715 in words is "three trillion, one hundred twenty-eight billion, one hundred twenty-three million, five hundred fifty-two thousand, seven hundred fifteen".