18750720142 has 24 divisors (see below), whose sum is σ = 35692467480. Its totient is φ = 7305474960.

The previous prime is 18750720139. The next prime is 18750720143. The reversal of 18750720142 is 24102705781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18750720143) 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, 8695917 + ... + 8698072.

It is an arithmetic number, because the mean of its divisors is an integer number (1487186145).

Almost surely, 2^18750720142 is an apocalyptic number.

18750720142 is a deficient number, since it is larger than the sum of its proper divisors (16941747338).

18750720142 is a wasteful number, since it uses less digits than its factorization.

18750720142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17394016 (or 17394009 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 37.

The spelling of 18750720142 in words is "eighteen billion, seven hundred fifty million, seven hundred twenty thousand, one hundred forty-two".