90407070431 has 2 divisors, whose sum is σ = 90407070432. Its totient is φ = 90407070430.

The previous prime is 90407070419. The next prime is 90407070433. The reversal of 90407070431 is 13407070409.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90407070431 - 2⁶ = 90407070367 is a prime.

It is a super-2 number, since 2×90407070431² (a number of 23 digits) contains 22 as substring.

Together with 90407070433, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 90407070391 and 90407070400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90407070433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45203535215 + 45203535216.

It is an arithmetic number, because the mean of its divisors is an integer number (45203535216).

Almost surely, 2^90407070431 is an apocalyptic number.

90407070431 is a deficient number, since it is larger than the sum of its proper divisors (1).

90407070431 is an equidigital number, since it uses as much as digits as its factorization.

90407070431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 35.

The spelling of 90407070431 in words is "ninety billion, four hundred seven million, seventy thousand, four hundred thirty-one".