18312613896976 has 45 divisors (see below), whose sum is σ = 41273725103541. Its totient is φ = 7848211746816.

The previous prime is 18312613896947. The next prime is 18312613897003. The reversal of 18312613896976 is 67969831621381.

The square root of 18312613896976 is 4279324.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7283413488400 + 11029200408576 = 2698780^2 + 3321024^2 .

It is a super-2 number, since 2×18312613896976² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 119744656 + ... + 119897488.

Almost surely, 2^{18312613896976} is an apocalyptic number.

18312613896976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

18312613896976 is the 4279324-th square number.

It is an amenable number.

18312613896976 is an abundant number, since it is smaller than the sum of its proper divisors (22961111206565).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18312613896976 is an frugal number, since it uses more digits than its factorization.

18312613896976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305688 (or 152842 counting only the distinct ones).

The product of its digits is 141087744, while the sum is 70.

The spelling of 18312613896976 in words is "eighteen trillion, three hundred twelve billion, six hundred thirteen million, eight hundred ninety-six thousand, nine hundred seventy-six".