87831783044 has 12 divisors (see below), whose sum is σ = 158663866368. Its totient is φ = 42499249800.

The previous prime is 87831783031. The next prime is 87831783049. The reversal of 87831783044 is 44038713878.

It is a super-2 number, since 2×87831783044² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87831783049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354160292 + ... + 354160539.

It is an arithmetic number, because the mean of its divisors is an integer number (13221988864).

Almost surely, 2^87831783044 is an apocalyptic number.

It is an amenable number.

87831783044 is a deficient number, since it is larger than the sum of its proper divisors (70832083324).

87831783044 is a wasteful number, since it uses less digits than its factorization.

87831783044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708320866 (or 708320864 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 53.

The spelling of 87831783044 in words is "eighty-seven billion, eight hundred thirty-one million, seven hundred eighty-three thousand, forty-four".