19649348796 has 48 divisors (see below), whose sum is σ = 57161744640. Its totient is φ = 5103726720.

The previous prime is 19649348773. The next prime is 19649348813. The reversal of 19649348796 is 69784394691.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10631841 + ... + 10633688.

It is an arithmetic number, because the mean of its divisors is an integer number (1190869680).

Almost surely, 2^19649348796 is an apocalyptic number.

It is an amenable number.

19649348796 is an abundant number, since it is smaller than the sum of its proper divisors (37512395844).

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

19649348796 is a wasteful number, since it uses less digits than its factorization.

19649348796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21265554 (or 21265552 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 66.

The spelling of 19649348796 in words is "nineteen billion, six hundred forty-nine million, three hundred forty-eight thousand, seven hundred ninety-six".