90208077392 has 20 divisors (see below), whose sum is σ = 175254396096. Its totient is φ = 44981136480.

The previous prime is 90208077361. The next prime is 90208077413. The reversal of 90208077392 is 29377080209.

It is a super-4 number, since 4×90208077392⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7675334 + ... + 7687077.

Almost surely, 2^90208077392 is an apocalyptic number.

It is an amenable number.

90208077392 is a deficient number, since it is larger than the sum of its proper divisors (85046318704).

90208077392 is a wasteful number, since it uses less digits than its factorization.

90208077392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15362786 (or 15362780 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 90208077392 in words is "ninety billion, two hundred eight million, seventy-seven thousand, three hundred ninety-two".