51860669455 has 32 divisors (see below), whose sum is σ = 77342276736. Its totient is φ = 32565141504.

The previous prime is 51860669437. The next prime is 51860669479. The reversal of 51860669455 is 55496606815.

It is not a de Polignac number, because 51860669455 - 2²¹ = 51858572303 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51860669396 and 51860669405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1155834 + ... + 1199863.

It is an arithmetic number, because the mean of its divisors is an integer number (2416946148).

Almost surely, 2^51860669455 is an apocalyptic number.

51860669455 is a deficient number, since it is larger than the sum of its proper divisors (25481607281).

51860669455 is a wasteful number, since it uses less digits than its factorization.

51860669455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355763.

The product of its (nonzero) digits is 7776000, while the sum is 55.

The spelling of 51860669455 in words is "fifty-one billion, eight hundred sixty million, six hundred sixty-nine thousand, four hundred fifty-five".