18514866622480 has 40 divisors (see below), whose sum is σ = 43174801057752. Its totient is φ = 7383970535424.

The previous prime is 18514866622477. The next prime is 18514866622507. The reversal of 18514866622480 is 8422666841581.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 243960917776 + 18270905704704 = 493924^2 + 4274448^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343349647 + ... + 343403566.

Almost surely, 2^{18514866622480} is an apocalyptic number.

18514866622480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18514866622480 is an abundant number, since it is smaller than the sum of its proper divisors (24659934435272).

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

18514866622480 is a wasteful number, since it uses less digits than its factorization.

18514866622480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686753563 (or 686753557 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 61.

The spelling of 18514866622480 in words is "eighteen trillion, five hundred fourteen billion, eight hundred sixty-six million, six hundred twenty-two thousand, four hundred eighty".