18769445292 has 96 divisors (see below), whose sum is σ = 48126181824. Its totient is φ = 5658624000.

The previous prime is 18769445291. The next prime is 18769445311. The reversal of 18769445292 is 29254496781.

It is not an unprimeable number, because it can be changed into a prime (18769445291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1522192 + ... + 1534472.

It is an arithmetic number, because the mean of its divisors is an integer number (501314394).

Almost surely, 2^18769445292 is an apocalyptic number.

18769445292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18769445292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24063090912).

18769445292 is an abundant number, since it is smaller than the sum of its proper divisors (29356736532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18769445292 is a wasteful number, since it uses less digits than its factorization.

18769445292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12499 (or 12497 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 57.

The spelling of 18769445292 in words is "eighteen billion, seven hundred sixty-nine million, four hundred forty-five thousand, two hundred ninety-two".