90629810091 has 32 divisors (see below), whose sum is σ = 139527936000. Its totient is φ = 58078343520.

The previous prime is 90629810071. The next prime is 90629810189. The reversal of 90629810091 is 19001892609.

90629810091 is a `hidden beast` number, since 9 + 0 + 629 + 8 + 10 + 0 + 9 + 1 = 666.

It is not a de Polignac number, because 90629810091 - 2¹⁴ = 90629793707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90629810071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 238641 + ... + 488066.

It is an arithmetic number, because the mean of its divisors is an integer number (4360248000).

Almost surely, 2^90629810091 is an apocalyptic number.

90629810091 is a deficient number, since it is larger than the sum of its proper divisors (48898125909).

90629810091 is a wasteful number, since it uses less digits than its factorization.

90629810091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726896 (or 726890 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The spelling of 90629810091 in words is "ninety billion, six hundred twenty-nine million, eight hundred ten thousand, ninety-one".