92447819081 has 2 divisors, whose sum is σ = 92447819082. Its totient is φ = 92447819080.

The previous prime is 92447819047. The next prime is 92447819111. The reversal of 92447819081 is 18091874429.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48867081481 + 43580737600 = 221059^2 + 208760^2 .

It is an emirp because it is prime and its reverse (18091874429) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-92447819081 is a prime.

It is a super-2 number, since 2×92447819081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (92447819021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46223909540 + 46223909541.

It is an arithmetic number, because the mean of its divisors is an integer number (46223909541).

Almost surely, 2^92447819081 is an apocalyptic number.

It is an amenable number.

92447819081 is a deficient number, since it is larger than the sum of its proper divisors (1).

92447819081 is an equidigital number, since it uses as much as digits as its factorization.

92447819081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 53.

The spelling of 92447819081 in words is "ninety-two billion, four hundred forty-seven million, eight hundred nineteen thousand, eighty-one".