61131936692364 has 24 divisors (see below), whose sum is σ = 142649665025280. Its totient is φ = 20376100886544.

The previous prime is 61131936692329. The next prime is 61131936692369. The reversal of 61131936692364 is 46329663913116.

It is a happy number.

61131936692364 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61131936692364² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61131936692298 and 61131936692307.

It is not an unprimeable number, because it can be changed into a prime (61131936692369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151207744 + ... + 151611495.

It is an arithmetic number, because the mean of its divisors is an integer number (5943736042720).

Almost surely, 2^{61131936692364} is an apocalyptic number.

It is an amenable number.

61131936692364 is an abundant number, since it is smaller than the sum of its proper divisors (81517728332916).

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

61131936692364 is a wasteful number, since it uses less digits than its factorization.

61131936692364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302836069 (or 302836067 counting only the distinct ones).

The product of its digits is 22674816, while the sum is 60.

The spelling of 61131936692364 in words is "sixty-one trillion, one hundred thirty-one billion, nine hundred thirty-six million, six hundred ninety-two thousand, three hundred sixty-four".