90577819250 has 32 divisors (see below), whose sum is σ = 172092480768. Its totient is φ = 35690358000.

The previous prime is 90577819207. The next prime is 90577819271. The reversal of 90577819250 is 5291877509.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 90577819192 and 90577819201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2687066 + ... + 2720565.

It is an arithmetic number, because the mean of its divisors is an integer number (5377890024).

Almost surely, 2^90577819250 is an apocalyptic number.

90577819250 is a deficient number, since it is larger than the sum of its proper divisors (81514661518).

90577819250 is a wasteful number, since it uses less digits than its factorization.

90577819250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5407715 (or 5407705 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 53.

The spelling of 90577819250 in words is "ninety billion, five hundred seventy-seven million, eight hundred nineteen thousand, two hundred fifty".