90946653731 has 2 divisors, whose sum is σ = 90946653732. Its totient is φ = 90946653730.

The previous prime is 90946653701. The next prime is 90946653739. The reversal of 90946653731 is 13735664909.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90946653731 - 2¹⁸ = 90946391587 is a prime.

It is a super-2 number, since 2×90946653731² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (90946653739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45473326865 + 45473326866.

It is an arithmetic number, because the mean of its divisors is an integer number (45473326866).

Almost surely, 2^90946653731 is an apocalyptic number.

90946653731 is a deficient number, since it is larger than the sum of its proper divisors (1).

90946653731 is an equidigital number, since it uses as much as digits as its factorization.

90946653731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3674160, while the sum is 53.

The spelling of 90946653731 in words is "ninety billion, nine hundred forty-six million, six hundred fifty-three thousand, seven hundred thirty-one".