90612150691 has 4 divisors (see below), whose sum is σ = 90921407472. Its totient is φ = 90302893912.

The previous prime is 90612150689. The next prime is 90612150731. The reversal of 90612150691 is 19605121609.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90612150691 - 2¹ = 90612150689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90612153691) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 154627951 + ... + 154628536.

It is an arithmetic number, because the mean of its divisors is an integer number (22730351868).

Almost surely, 2^90612150691 is an apocalyptic number.

90612150691 is a deficient number, since it is larger than the sum of its proper divisors (309256781).

90612150691 is a wasteful number, since it uses less digits than its factorization.

90612150691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309256780.

The product of its (nonzero) digits is 29160, while the sum is 40.

The spelling of 90612150691 in words is "ninety billion, six hundred twelve million, one hundred fifty thousand, six hundred ninety-one".