2531326904820 has 72 divisors (see below), whose sum is σ = 8775266607744. Its totient is φ = 578589006528.

The previous prime is 2531326904803. The next prime is 2531326904837. The reversal of 2531326904820 is 284096231352.

2531326904820 is a `hidden beast` number, since 2 + 53 + 1 + 32 + 6 + 90 + 482 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2531326904803) and next prime (2531326904837).

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

It is a congruent number.

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, 1004493544 + ... + 1004496063.

Almost surely, 2^{2531326904820} is an apocalyptic number.

2531326904820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2531326904820 is an abundant number, since it is smaller than the sum of its proper divisors (6243939702924).

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

2531326904820 is a wasteful number, since it uses less digits than its factorization.

2531326904820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008989629 (or 2008989624 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 2531326904820 in words is "two trillion, five hundred thirty-one billion, three hundred twenty-six million, nine hundred four thousand, eight hundred twenty".