18942508759 has 4 divisors (see below), whose sum is σ = 18960741280. Its totient is φ = 18924276240.

The previous prime is 18942508727. The next prime is 18942508771. The reversal of 18942508759 is 95780524981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95780524981 = 4909 ⋅19511209.

It is a cyclic number.

It is not a de Polignac number, because 18942508759 - 2⁵ = 18942508727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18942509759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9114702 + ... + 9116779.

It is an arithmetic number, because the mean of its divisors is an integer number (4740185320).

Almost surely, 2^18942508759 is an apocalyptic number.

18942508759 is a deficient number, since it is larger than the sum of its proper divisors (18232521).

18942508759 is a wasteful number, since it uses less digits than its factorization.

18942508759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18232520.

The product of its (nonzero) digits is 7257600, while the sum is 58.

The spelling of 18942508759 in words is "eighteen billion, nine hundred forty-two million, five hundred eight thousand, seven hundred fifty-nine".