61432968131 has 2 divisors, whose sum is σ = 61432968132. Its totient is φ = 61432968130.

The previous prime is 61432968089. The next prime is 61432968139. The reversal of 61432968131 is 13186923416.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61432968131 - 2²² = 61428773827 is a prime.

It is a super-2 number, since 2×61432968131² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61432968139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30716484065 + 30716484066.

It is an arithmetic number, because the mean of its divisors is an integer number (30716484066).

Almost surely, 2^61432968131 is an apocalyptic number.

61432968131 is a deficient number, since it is larger than the sum of its proper divisors (1).

61432968131 is an equidigital number, since it uses as much as digits as its factorization.

61432968131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 44.

The spelling of 61432968131 in words is "sixty-one billion, four hundred thirty-two million, nine hundred sixty-eight thousand, one hundred thirty-one".