61194572708431 has 2 divisors, whose sum is σ = 61194572708432. Its totient is φ = 61194572708430.

The previous prime is 61194572708393. The next prime is 61194572708447. The reversal of 61194572708431 is 13480727549116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61194572708431 - 2¹¹ = 61194572706383 is a prime.

It is a super-2 number, since 2×61194572708431² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61194572708461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30597286354215 + 30597286354216.

It is an arithmetic number, because the mean of its divisors is an integer number (30597286354216).

It is a 1-persistent number, because it is pandigital, but 2⋅61194572708431 = 122389145416862 is not.

Almost surely, 2^{61194572708431} is an apocalyptic number.

61194572708431 is a deficient number, since it is larger than the sum of its proper divisors (1).

61194572708431 is an equidigital number, since it uses as much as digits as its factorization.

61194572708431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10160640, while the sum is 58.

The spelling of 61194572708431 in words is "sixty-one trillion, one hundred ninety-four billion, five hundred seventy-two million, seven hundred eight thousand, four hundred thirty-one".