18557382741 has 16 divisors (see below), whose sum is σ = 25529160960. Its totient is φ = 11984506560.

The previous prime is 18557382737. The next prime is 18557382743. The reversal of 18557382741 is 14728375581.

It is not a de Polignac number, because 18557382741 - 2² = 18557382737 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18557382743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 726130 + ... + 751251.

It is an arithmetic number, because the mean of its divisors is an integer number (1595572560).

Almost surely, 2^18557382741 is an apocalyptic number.

It is an amenable number.

18557382741 is a deficient number, since it is larger than the sum of its proper divisors (6971778219).

18557382741 is a wasteful number, since it uses less digits than its factorization.

18557382741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477516.

The product of its digits is 1881600, while the sum is 51.

The spelling of 18557382741 in words is "eighteen billion, five hundred fifty-seven million, three hundred eighty-two thousand, seven hundred forty-one".