18803877734 has 16 divisors (see below), whose sum is σ = 28419523488. Its totient is φ = 9330741312.

The previous prime is 18803877721. The next prime is 18803877739. The reversal of 18803877734 is 43777830881.

It is a self number, because there is not a number n which added to its sum of digits gives 18803877734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18803877739) 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, 1336424 + ... + 1350420.

It is an arithmetic number, because the mean of its divisors is an integer number (1776220218).

Almost surely, 2^18803877734 is an apocalyptic number.

18803877734 is a deficient number, since it is larger than the sum of its proper divisors (9615645754).

18803877734 is a wasteful number, since it uses less digits than its factorization.

18803877734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19039.

The product of its (nonzero) digits is 6322176, while the sum is 56.

The spelling of 18803877734 in words is "eighteen billion, eight hundred three million, eight hundred seventy-seven thousand, seven hundred thirty-four".