18540601053 has 8 divisors (see below), whose sum is σ = 26622401568. Its totient is φ = 11409600624.

The previous prime is 18540601043. The next prime is 18540601073. The reversal of 18540601053 is 35010604581.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18540601053 - 2⁶ = 18540600989 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18540601043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237699975 + ... + 237700052.

It is an arithmetic number, because the mean of its divisors is an integer number (3327800196).

Almost surely, 2^18540601053 is an apocalyptic number.

18540601053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18540601053 is a deficient number, since it is larger than the sum of its proper divisors (8081800515).

18540601053 is a wasteful number, since it uses less digits than its factorization.

18540601053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475400043.

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 18540601053 in words is "eighteen billion, five hundred forty million, six hundred one thousand, fifty-three".