90961594028 has 24 divisors (see below), whose sum is σ = 160037768688. Its totient is φ = 45236606976.

The previous prime is 90961594019. The next prime is 90961594043. The reversal of 90961594028 is 82049516909.

It is a super-2 number, since 2×90961594028² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6719675 + ... + 6733197.

It is an arithmetic number, because the mean of its divisors is an integer number (6668240362).

Almost surely, 2^90961594028 is an apocalyptic number.

It is an amenable number.

90961594028 is a deficient number, since it is larger than the sum of its proper divisors (69076174660).

90961594028 is a wasteful number, since it uses less digits than its factorization.

90961594028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22433 (or 22431 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 53.

The spelling of 90961594028 in words is "ninety billion, nine hundred sixty-one million, five hundred ninety-four thousand, twenty-eight".