51761162541 has 16 divisors (see below), whose sum is σ = 75683155968. Its totient is φ = 31206154800.

The previous prime is 51761162507. The next prime is 51761162591. The reversal of 51761162541 is 14526116715.

It is not a de Polignac number, because 51761162541 - 2⁶ = 51761162477 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51761162541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51761162591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4099771 + ... + 4112376.

It is an arithmetic number, because the mean of its divisors is an integer number (4730197248).

Almost surely, 2^51761162541 is an apocalyptic number.

It is an amenable number.

51761162541 is a deficient number, since it is larger than the sum of its proper divisors (23921993427).

51761162541 is a wasteful number, since it uses less digits than its factorization.

51761162541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8212352.

The product of its digits is 50400, while the sum is 39.

The spelling of 51761162541 in words is "fifty-one billion, seven hundred sixty-one million, one hundred sixty-two thousand, five hundred forty-one".