92190708781 has 2 divisors, whose sum is σ = 92190708782. Its totient is φ = 92190708780.

The previous prime is 92190708719. The next prime is 92190708803. The reversal of 92190708781 is 18780709129.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90438532900 + 1752175881 = 300730^2 + 41859^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-92190708781 is a prime.

It is a super-2 number, since 2×92190708781² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (92190708481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46095354390 + 46095354391.

It is an arithmetic number, because the mean of its divisors is an integer number (46095354391).

Almost surely, 2^92190708781 is an apocalyptic number.

It is an amenable number.

92190708781 is a deficient number, since it is larger than the sum of its proper divisors (1).

92190708781 is an equidigital number, since it uses as much as digits as its factorization.

92190708781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 52.

The spelling of 92190708781 in words is "ninety-two billion, one hundred ninety million, seven hundred eight thousand, seven hundred eighty-one".