18354918976 has 14 divisors (see below), whose sum is σ = 36423042470. Its totient is φ = 9177459456.

The previous prime is 18354918949. The next prime is 18354919019. The reversal of 18354918976 is 67981945381.

It can be written as a sum of positive squares in only one way, i.e., 13679641600 + 4675277376 = 116960^2 + 68376^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143397741 + ... + 143397868.

Almost surely, 2^18354918976 is an apocalyptic number.

18354918976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18354918976 is a deficient number, since it is larger than the sum of its proper divisors (18068123494).

18354918976 is an equidigital number, since it uses as much as digits as its factorization.

18354918976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286795621 (or 286795611 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 61.

The spelling of 18354918976 in words is "eighteen billion, three hundred fifty-four million, nine hundred eighteen thousand, nine hundred seventy-six".