51777523576444 has 12 divisors (see below), whose sum is σ = 90610722806968. Its totient is φ = 25888745631600.

The previous prime is 51777523576433. The next prime is 51777523576477. The reversal of 51777523576444 is 44467532577715.

It is a self number, because there is not a number n which added to its sum of digits gives 51777523576444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5875654 + ... + 11750674.

Almost surely, 2^{51777523576444} is an apocalyptic number.

It is an amenable number.

51777523576444 is a deficient number, since it is larger than the sum of its proper divisors (38833199230524).

51777523576444 is a wasteful number, since it uses less digits than its factorization.

51777523576444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8078316 (or 8078314 counting only the distinct ones).

The product of its digits is 691488000, while the sum is 67.

The spelling of 51777523576444 in words is "fifty-one trillion, seven hundred seventy-seven billion, five hundred twenty-three million, five hundred seventy-six thousand, four hundred forty-four".