890287087744 has 32 divisors (see below), whose sum is σ = 1776302212140. Its totient is φ = 444470062080.

The previous prime is 890287087649. The next prime is 890287087787. The reversal of 890287087744 is 447780782098.

It can be written as a sum of positive squares in 2 ways, for example, as 888283630144 + 2003457600 = 942488^2 + 44760^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×890287087744² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64).

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, 5176639 + ... + 5345854.

Almost surely, 2^890287087744 is an apocalyptic number.

It is an amenable number.

890287087744 is a deficient number, since it is larger than the sum of its proper divisors (886015124396).

890287087744 is a wasteful number, since it uses less digits than its factorization.

890287087744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10523168 (or 10523156 counting only the distinct ones).

The product of its (nonzero) digits is 50577408, while the sum is 64.

The spelling of 890287087744 in words is "eight hundred ninety billion, two hundred eighty-seven million, eighty-seven thousand, seven hundred forty-four".