90345579237 has 12 divisors (see below), whose sum is σ = 132337187424. Its totient is φ = 59382070440.

The previous prime is 90345579187. The next prime is 90345579241. The reversal of 90345579237 is 73297554309.

90345579237 is a `hidden beast` number, since 9 + 0 + 3 + 45 + 579 + 23 + 7 = 666.

It is not a de Polignac number, because 90345579237 - 2⁶ = 90345579173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90345579257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70692303 + ... + 70693580.

It is an arithmetic number, because the mean of its divisors is an integer number (11028098952).

Almost surely, 2^90345579237 is an apocalyptic number.

It is an amenable number.

90345579237 is a deficient number, since it is larger than the sum of its proper divisors (41991608187).

90345579237 is a wasteful number, since it uses less digits than its factorization.

90345579237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141385960 (or 141385957 counting only the distinct ones).

The product of its (nonzero) digits is 7144200, while the sum is 54.

The spelling of 90345579237 in words is "ninety billion, three hundred forty-five million, five hundred seventy-nine thousand, two hundred thirty-seven".