18511796982 has 32 divisors (see below), whose sum is σ = 42592909824. Its totient is φ = 5254056000.

The previous prime is 18511796981. The next prime is 18511797047. The reversal of 18511796982 is 28969711581.

It is a super-3 number, since 3×18511796982³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18511796981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1453119 + ... + 1465802.

It is an arithmetic number, because the mean of its divisors is an integer number (1331028432).

Almost surely, 2^18511796982 is an apocalyptic number.

18511796982 is an abundant number, since it is smaller than the sum of its proper divisors (24081112842).

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

18511796982 is a wasteful number, since it uses less digits than its factorization.

18511796982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919084.

The product of its digits is 2177280, while the sum is 57.

The spelling of 18511796982 in words is "eighteen billion, five hundred eleven million, seven hundred ninety-six thousand, nine hundred eighty-two".