18701149629 has 12 divisors (see below), whose sum is σ = 25194614784. Its totient is φ = 12338884224.

The previous prime is 18701149619. The next prime is 18701149639. The reversal of 18701149629 is 92694110781.

It is an interprime number because it is at equal distance from previous prime (18701149619) and next prime (18701149639).

It is a de Polignac number, because none of the positive numbers 2^k-18701149629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18701149619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 303037 + ... + 359490.

It is an arithmetic number, because the mean of its divisors is an integer number (2099551232).

Almost surely, 2^18701149629 is an apocalyptic number.

It is an amenable number.

18701149629 is a deficient number, since it is larger than the sum of its proper divisors (6493465155).

18701149629 is an frugal number, since it uses more digits than its factorization.

18701149629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662724 (or 662627 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 48.

The spelling of 18701149629 in words is "eighteen billion, seven hundred one million, one hundred forty-nine thousand, six hundred twenty-nine".