2531678172875 has 16 divisors (see below), whose sum is σ = 3325825644960. Its totient is φ = 1918745560800.

The previous prime is 2531678172869. The next prime is 2531678172893. The reversal of 2531678172875 is 5782718761352.

It is not a de Polignac number, because 2531678172875 - 2³⁰ = 2530604431051 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 532982504 + ... + 532987253.

It is an arithmetic number, because the mean of its divisors is an integer number (207864102810).

Almost surely, 2^{2531678172875} is an apocalyptic number.

2531678172875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2531678172875 is a deficient number, since it is larger than the sum of its proper divisors (794147472085).

2531678172875 is a wasteful number, since it uses less digits than its factorization.

2531678172875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065969791 (or 1065969781 counting only the distinct ones).

The product of its digits is 39513600, while the sum is 62.

The spelling of 2531678172875 in words is "two trillion, five hundred thirty-one billion, six hundred seventy-eight million, one hundred seventy-two thousand, eight hundred seventy-five".