901091181983 has 2 divisors, whose sum is σ = 901091181984. Its totient is φ = 901091181982.

The previous prime is 901091181953. The next prime is 901091182001. The reversal of 901091181983 is 389181190109.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 901091181983 - 2²⁶ = 901024073119 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (901091181953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450545590991 + 450545590992.

It is an arithmetic number, because the mean of its divisors is an integer number (450545590992).

Almost surely, 2^901091181983 is an apocalyptic number.

901091181983 is a deficient number, since it is larger than the sum of its proper divisors (1).

901091181983 is an equidigital number, since it uses as much as digits as its factorization.

901091181983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 50.

The spelling of 901091181983 in words is "nine hundred one billion, ninety-one million, one hundred eighty-one thousand, nine hundred eighty-three".