90691260620 has 48 divisors (see below), whose sum is σ = 191819214720. Its totient is φ = 36016601856.

The previous prime is 90691260619. The next prime is 90691260631. The reversal of 90691260620 is 2606219609.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2518301 + ... + 2554059.

It is an arithmetic number, because the mean of its divisors is an integer number (3996233640).

Almost surely, 2^90691260620 is an apocalyptic number.

It is an amenable number.

90691260620 is an abundant number, since it is smaller than the sum of its proper divisors (101127954100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90691260620 is a wasteful number, since it uses less digits than its factorization.

90691260620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36674 (or 36672 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 90691260620 in words is "ninety billion, six hundred ninety-one million, two hundred sixty thousand, six hundred twenty".