90090091627 has 2 divisors, whose sum is σ = 90090091628. Its totient is φ = 90090091626.

The previous prime is 90090091603. The next prime is 90090091639. The reversal of 90090091627 is 72619009009.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90090091627 is a prime.

It is a super-2 number, since 2×90090091627² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (90090091657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45045045813 + 45045045814.

It is an arithmetic number, because the mean of its divisors is an integer number (45045045814).

Almost surely, 2^90090091627 is an apocalyptic number.

90090091627 is a deficient number, since it is larger than the sum of its proper divisors (1).

90090091627 is an equidigital number, since it uses as much as digits as its factorization.

90090091627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 43.

The spelling of 90090091627 in words is "ninety billion, ninety million, ninety-one thousand, six hundred twenty-seven".