61392371131 has 16 divisors (see below), whose sum is σ = 75683172544. Its totient is φ = 48494899584.

The previous prime is 61392371087. The next prime is 61392371137. The reversal of 61392371131 is 13117329316.

It is a cyclic number.

It is not a de Polignac number, because 61392371131 - 2³⁵ = 27032632763 is a prime.

It is a super-2 number, since 2×61392371131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61392371137) 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, 494496 + ... + 606061.

It is an arithmetic number, because the mean of its divisors is an integer number (4730198284).

Almost surely, 2^61392371131 is an apocalyptic number.

61392371131 is a deficient number, since it is larger than the sum of its proper divisors (14290801413).

61392371131 is a wasteful number, since it uses less digits than its factorization.

61392371131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101190.

The product of its digits is 20412, while the sum is 37.

The spelling of 61392371131 in words is "sixty-one billion, three hundred ninety-two million, three hundred seventy-one thousand, one hundred thirty-one".