2521623542364 has 60 divisors (see below), whose sum is σ = 6592565040600. Its totient is φ = 840471943392.

The previous prime is 2521623542363. The next prime is 2521623542377. The reversal of 2521623542364 is 4632453261252.

2521623542364 is a `hidden beast` number, since 2 + 5 + 2 + 1 + 62 + 354 + 236 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521623542363) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3696442 + ... + 4325150.

It is an arithmetic number, because the mean of its divisors is an integer number (109876084010).

Almost surely, 2^{2521623542364} is an apocalyptic number.

It is an amenable number.

2521623542364 is an abundant number, since it is smaller than the sum of its proper divisors (4070941498236).

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

2521623542364 is a wasteful number, since it uses less digits than its factorization.

2521623542364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641104 (or 641093 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 45.

The spelling of 2521623542364 in words is "two trillion, five hundred twenty-one billion, six hundred twenty-three million, five hundred forty-two thousand, three hundred sixty-four".