90450545951 has 2 divisors, whose sum is σ = 90450545952. Its totient is φ = 90450545950.

The previous prime is 90450545929. The next prime is 90450545953. The reversal of 90450545951 is 15954505409.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90450545951 - 2¹⁴ = 90450529567 is a prime.

Together with 90450545953, 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 = 90450545896 and 90450545905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90450545953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45225272975 + 45225272976.

It is an arithmetic number, because the mean of its divisors is an integer number (45225272976).

Almost surely, 2^90450545951 is an apocalyptic number.

90450545951 is a deficient number, since it is larger than the sum of its proper divisors (1).

90450545951 is an equidigital number, since it uses as much as digits as its factorization.

90450545951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810000, while the sum is 47.

The spelling of 90450545951 in words is "ninety billion, four hundred fifty million, five hundred forty-five thousand, nine hundred fifty-one".