18711458400745 has 16 divisors (see below), whose sum is σ = 24631843677120. Its totient is φ = 13532309166400.

The previous prime is 18711458400689. The next prime is 18711458400763. The reversal of 18711458400745 is 54700485411781.

It is not a de Polignac number, because 18711458400745 - 2⁹ = 18711458400233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 950292766 + ... + 950312455.

It is an arithmetic number, because the mean of its divisors is an integer number (1539490229820).

Almost surely, 2^{18711458400745} is an apocalyptic number.

It is an amenable number.

18711458400745 is a deficient number, since it is larger than the sum of its proper divisors (5920385276375).

18711458400745 is a wasteful number, since it uses less digits than its factorization.

18711458400745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900605416.

The product of its (nonzero) digits is 5017600, while the sum is 55.

The spelling of 18711458400745 in words is "eighteen trillion, seven hundred eleven billion, four hundred fifty-eight million, four hundred thousand, seven hundred forty-five".