18992768901 has 8 divisors (see below), whose sum is σ = 25341126240. Its totient is φ = 12653128752.

The previous prime is 18992768881. The next prime is 18992768909. The reversal of 18992768901 is 10986729981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18992768901 - 2²³ = 18984380293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18992768909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2174211 + ... + 2182928.

It is an arithmetic number, because the mean of its divisors is an integer number (3167640780).

Almost surely, 2^18992768901 is an apocalyptic number.

It is an amenable number.

18992768901 is a deficient number, since it is larger than the sum of its proper divisors (6348357339).

18992768901 is a wasteful number, since it uses less digits than its factorization.

18992768901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4358595.

The product of its (nonzero) digits is 3919104, while the sum is 60.

The spelling of 18992768901 in words is "eighteen billion, nine hundred ninety-two million, seven hundred sixty-eight thousand, nine hundred one".