2521634122373 has 4 divisors (see below), whose sum is σ = 2521638831648. Its totient is φ = 2521629413100.

The previous prime is 2521634122369. The next prime is 2521634122421. The reversal of 2521634122373 is 3732214361252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2521634122373 - 2² = 2521634122369 is a prime.

It is a super-2 number, since 2×2521634122373² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2521634122373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521634142373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1430561 + ... + 2662662.

It is an arithmetic number, because the mean of its divisors is an integer number (630409707912).

Almost surely, 2^{2521634122373} is an apocalyptic number.

It is an amenable number.

2521634122373 is a deficient number, since it is larger than the sum of its proper divisors (4709275).

2521634122373 is an equidigital number, since it uses as much as digits as its factorization.

2521634122373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4709274.

The product of its digits is 362880, while the sum is 41.

The spelling of 2521634122373 in words is "two trillion, five hundred twenty-one billion, six hundred thirty-four million, one hundred twenty-two thousand, three hundred seventy-three".