18137053548 has 36 divisors (see below), whose sum is σ = 47025619480. Its totient is φ = 6045217992.

The previous prime is 18137053547. The next prime is 18137053637. The reversal of 18137053548 is 84535073181.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

18137053548 is a `hidden beast` number, since 1 + 8 + 1 + 3 + 70 + 535 + 48 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×18137053548² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18137053541) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1393093 + ... + 1406051.

Almost surely, 2^18137053548 is an apocalyptic number.

18137053548 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18137053548 is an abundant number, since it is smaller than the sum of its proper divisors (28888565932).

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

18137053548 is an frugal number, since it uses more digits than its factorization.

18137053548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25931 (or 12964 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 18137053548 in words is "eighteen billion, one hundred thirty-seven million, fifty-three thousand, five hundred forty-eight".