19408786632 has 48 divisors (see below), whose sum is σ = 53305836480. Its totient is φ = 6378472800.

The previous prime is 19408786583. The next prime is 19408786697. The reversal of 19408786632 is 23668780491.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1893244 + ... + 1903467.

It is an arithmetic number, because the mean of its divisors is an integer number (1110538260).

Almost surely, 2^19408786632 is an apocalyptic number.

19408786632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19408786632 is an abundant number, since it is smaller than the sum of its proper divisors (33897049848).

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

19408786632 is a wasteful number, since it uses less digits than its factorization.

19408786632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3796794 (or 3796787 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 19408786632 in words is "nineteen billion, four hundred eight million, seven hundred eighty-six thousand, six hundred thirty-two".