19364654680 has 64 divisors (see below), whose sum is σ = 51401134080. Its totient is φ = 6425136000.

The previous prime is 19364654641. The next prime is 19364654681. The reversal of 19364654680 is 8645646391.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19364654681) 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, 1106796 + ... + 1124155.

It is an arithmetic number, because the mean of its divisors is an integer number (803142720).

Almost surely, 2^19364654680 is an apocalyptic number.

19364654680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19364654680 is an abundant number, since it is smaller than the sum of its proper divisors (32036479400).

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

19364654680 is a wasteful number, since it uses less digits than its factorization.

19364654680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231000 (or 2230996 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 52.

The spelling of 19364654680 in words is "nineteen billion, three hundred sixty-four million, six hundred fifty-four thousand, six hundred eighty".