90289725718 has 32 divisors (see below), whose sum is σ = 140892732288. Its totient is φ = 43364457600.

The previous prime is 90289725689. The next prime is 90289725739. The reversal of 90289725718 is 81752798209.

It is a congruent number.

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, 2626296 + ... + 2660452.

It is an arithmetic number, because the mean of its divisors is an integer number (4402897884).

Almost surely, 2^90289725718 is an apocalyptic number.

90289725718 is a deficient number, since it is larger than the sum of its proper divisors (50603006570).

90289725718 is a wasteful number, since it uses less digits than its factorization.

90289725718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34728.

The product of its (nonzero) digits is 5080320, while the sum is 58.

The spelling of 90289725718 in words is "ninety billion, two hundred eighty-nine million, seven hundred twenty-five thousand, seven hundred eighteen".