2551763442492 has 36 divisors (see below), whose sum is σ = 7036681009176. Its totient is φ = 773261649120.

The previous prime is 2551763442469. The next prime is 2551763442497. The reversal of 2551763442492 is 2942443671552.

2551763442492 is a `hidden beast` number, since 2 + 5 + 51 + 7 + 6 + 344 + 249 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2551763442492² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551763442497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3221923143 + ... + 3221923934.

It is an arithmetic number, because the mean of its divisors is an integer number (195463361366).

Almost surely, 2^{2551763442492} is an apocalyptic number.

2551763442492 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2551763442492 is an abundant number, since it is smaller than the sum of its proper divisors (4484917566684).

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

2551763442492 is a wasteful number, since it uses less digits than its factorization.

2551763442492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6443847098 (or 6443847093 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 54.

The spelling of 2551763442492 in words is "two trillion, five hundred fifty-one billion, seven hundred sixty-three million, four hundred forty-two thousand, four hundred ninety-two".