19386810492 has 48 divisors (see below), whose sum is σ = 53945912832. Its totient is φ = 5298258240.

The previous prime is 19386810491. The next prime is 19386810511. The reversal of 19386810492 is 29401868391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19386810491) 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, 5015359 + ... + 5019222.

It is an arithmetic number, because the mean of its divisors is an integer number (1123873184).

Almost surely, 2^19386810492 is an apocalyptic number.

19386810492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19386810492 is an abundant number, since it is smaller than the sum of its proper divisors (34559102340).

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

19386810492 is a wasteful number, since it uses less digits than its factorization.

19386810492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10034618 (or 10034616 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 19386810492 in words is "nineteen billion, three hundred eighty-six million, eight hundred ten thousand, four hundred ninety-two".