51761162475 has 72 divisors (see below), whose sum is σ = 105535602432. Its totient is φ = 24005150400.

The previous prime is 51761162473. The next prime is 51761162477. The reversal of 51761162475 is 57426116715.

51761162475 is a `hidden beast` number, since 5 + 1 + 7 + 6 + 11 + 624 + 7 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (51761162473) and next prime (51761162477).

It is not a de Polignac number, because 51761162475 - 2¹ = 51761162473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 51761162475.

It is not an unprimeable number, because it can be changed into a prime (51761162473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 397719 + ... + 511568.

It is an arithmetic number, because the mean of its divisors is an integer number (1465772256).

Almost surely, 2^51761162475 is an apocalyptic number.

51761162475 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51761162475 is an abundant number, since it is smaller than the sum of its proper divisors (53774439957).

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

51761162475 is a wasteful number, since it uses less digits than its factorization.

51761162475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909337 (or 909329 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The spelling of 51761162475 in words is "fifty-one billion, seven hundred sixty-one million, one hundred sixty-two thousand, four hundred seventy-five".