90906298436 has 12 divisors (see below), whose sum is σ = 159093208428. Its totient is φ = 45451096032.

The previous prime is 90906298429. The next prime is 90906298459. The reversal of 90906298436 is 63489260909.

It can be written as a sum of positive squares in 2 ways, for example, as 6690258436 + 84216040000 = 81794^2 + 290200^2 .

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, 411431 + ... + 592526.

It is an arithmetic number, because the mean of its divisors is an integer number (13257767369).

Almost surely, 2^90906298436 is an apocalyptic number.

It is an amenable number.

90906298436 is a deficient number, since it is larger than the sum of its proper divisors (68186909992).

90906298436 is a wasteful number, since it uses less digits than its factorization.

90906298436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026598 (or 1026596 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 56.

The spelling of 90906298436 in words is "ninety billion, nine hundred six million, two hundred ninety-eight thousand, four hundred thirty-six".