2551765190856 has 32 divisors (see below), whose sum is σ = 7290757688640. Its totient is φ = 729075768768.

The previous prime is 2551765190831. The next prime is 2551765190939. The reversal of 2551765190856 is 6580915671552.

It is a self number, because there is not a number n which added to its sum of digits gives 2551765190856.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7594539091 + ... + 7594539426.

It is an arithmetic number, because the mean of its divisors is an integer number (227836177770).

Almost surely, 2^{2551765190856} is an apocalyptic number.

It is an amenable number.

2551765190856 is an abundant number, since it is smaller than the sum of its proper divisors (4738992497784).

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

2551765190856 is a wasteful number, since it uses less digits than its factorization.

2551765190856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15189078533 (or 15189078529 counting only the distinct ones).

The product of its (nonzero) digits is 22680000, while the sum is 60.

The spelling of 2551765190856 in words is "two trillion, five hundred fifty-one billion, seven hundred sixty-five million, one hundred ninety thousand, eight hundred fifty-six".