1108987731590 has 32 divisors (see below), whose sum is σ = 2029175815680. Its totient is φ = 436314419200.

The previous prime is 1108987731581. The next prime is 1108987731613. The reversal of 1108987731590 is 951377898011.

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, 3091931 + ... + 3431910.

It is an arithmetic number, because the mean of its divisors is an integer number (63411744240).

Almost surely, 2^{1108987731590} is an apocalyptic number.

1108987731590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1108987731590 is a deficient number, since it is larger than the sum of its proper divisors (920188084090).

1108987731590 is a wasteful number, since it uses less digits than its factorization.

1108987731590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6524128.

The product of its (nonzero) digits is 3810240, while the sum is 59.

The spelling of 1108987731590 in words is "one trillion, one hundred eight billion, nine hundred eighty-seven million, seven hundred thirty-one thousand, five hundred ninety".