18300137513956 has 27 divisors (see below), whose sum is σ = 32914750228059. Its totient is φ = 8902615598208.

The previous prime is 18300137513941. The next prime is 18300137513971. The reversal of 18300137513956 is 65931573100381.

It is a happy number.

The square root of 18300137513956 is 4277866.

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

It is an interprime number because it is at equal distance from previous prime (18300137513941) and next prime (18300137513971).

It can be written as a sum of positive squares in 4 ways, for example, as 2907195502500 + 15392942011456 = 1705050^2 + 3923384^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 316533180 + ... + 316590988.

Almost surely, 2^{18300137513956} is an apocalyptic number.

18300137513956 is the 4277866-th square number.

It is an amenable number.

18300137513956 is a deficient number, since it is larger than the sum of its proper divisors (14614612714103).

18300137513956 is an frugal number, since it uses more digits than its factorization.

18300137513956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115696 (or 57848 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 52.

The spelling of 18300137513956 in words is "eighteen trillion, three hundred billion, one hundred thirty-seven million, five hundred thirteen thousand, nine hundred fifty-six".