90540372836 has 12 divisors (see below), whose sum is σ = 159143652528. Its totient is φ = 45070757832.

The previous prime is 90540372829. The next prime is 90540372847. The reversal of 90540372836 is 63827304509.

It is a happy number.

It is a super-2 number, since 2×90540372836² (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 3 ways as a sum of consecutive naturals, for example, 49856126 + ... + 49857941.

It is an arithmetic number, because the mean of its divisors is an integer number (13261971044).

Almost surely, 2^90540372836 is an apocalyptic number.

It is an amenable number.

90540372836 is a deficient number, since it is larger than the sum of its proper divisors (68603279692).

90540372836 is a wasteful number, since it uses less digits than its factorization.

90540372836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99714298 (or 99714296 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 90540372836 in words is "ninety billion, five hundred forty million, three hundred seventy-two thousand, eight hundred thirty-six".