988185745 has 16 divisors (see below), whose sum is σ = 1193367168. Its totient is φ = 785536000.

The previous prime is 988185727. The next prime is 988185761. The reversal of 988185745 is 547581889.

It is not a de Polignac number, because 988185745 - 2²⁵ = 954631313 is a prime.

It is a super-2 number, since 2×988185745² = 1953022133242410050, which contains 22 as substring.

It is a Duffinian 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, 811377 + ... + 812593.

It is an arithmetic number, because the mean of its divisors is an integer number (74585448).

Almost surely, 2^988185745 is an apocalyptic number.

It is an amenable number.

988185745 is a deficient number, since it is larger than the sum of its proper divisors (205181423).

988185745 is a wasteful number, since it uses less digits than its factorization.

988185745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120.

The product of its digits is 3225600, while the sum is 55.

The square root of 988185745 is about 31435.4218199788. The cubic root of 988185745 is about 996.0463038881.

The spelling of 988185745 in words is "nine hundred eighty-eight million, one hundred eighty-five thousand, seven hundred forty-five".