90010722658 has 32 divisors (see below), whose sum is σ = 139231286208. Its totient is φ = 43610529600.

The previous prime is 90010722653. The next prime is 90010722679. The reversal of 90010722658 is 85622701009.

It is a self number, because there is not a number n which added to its sum of digits gives 90010722658.

It is not an unprimeable number, because it can be changed into a prime (90010722653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39703641 + ... + 39705907.

It is an arithmetic number, because the mean of its divisors is an integer number (4350977694).

Almost surely, 2^90010722658 is an apocalyptic number.

90010722658 is a deficient number, since it is larger than the sum of its proper divisors (49220563550).

90010722658 is a wasteful number, since it uses less digits than its factorization.

90010722658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4258.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 90010722658 in words is "ninety billion, ten million, seven hundred twenty-two thousand, six hundred fifty-eight".