18476231631872 has 352 divisors, whose sum is σ = 45377104711680. Its totient is φ = 7339233116160.

The previous prime is 18476231631853. The next prime is 18476231631931. The reversal of 18476231631872 is 27813613267481.

It is a super-2 number, since 2×18476231631872² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3347747129 + ... + 3347752647.

Almost surely, 2^{18476231631872} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18476231631872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22688552355840).

18476231631872 is an abundant number, since it is smaller than the sum of its proper divisors (26900873079808).

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

18476231631872 is a wasteful number, since it uses less digits than its factorization.

18476231631872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5977 (or 5959 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 59.

The spelling of 18476231631872 in words is "eighteen trillion, four hundred seventy-six billion, two hundred thirty-one million, six hundred thirty-one thousand, eight hundred seventy-two".