18942960719 has 16 divisors (see below), whose sum is σ = 21013318656. Its totient is φ = 16996003200.

The previous prime is 18942960691. The next prime is 18942960737. The reversal of 18942960719 is 91706924981.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18942960719 is a prime.

It is a super-2 number, since 2×18942960719² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18942960739) 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, 232937 + ... + 303554.

It is an arithmetic number, because the mean of its divisors is an integer number (1313332416).

Almost surely, 2^18942960719 is an apocalyptic number.

18942960719 is a deficient number, since it is larger than the sum of its proper divisors (2070357937).

18942960719 is a wasteful number, since it uses less digits than its factorization.

18942960719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536606.

The product of its (nonzero) digits is 1959552, while the sum is 56.

The spelling of 18942960719 in words is "eighteen billion, nine hundred forty-two million, nine hundred sixty thousand, seven hundred nineteen".