19730400696 has 24 divisors (see below), whose sum is σ = 53436502080. Its totient is φ = 6576800208.

The previous prime is 19730400643. The next prime is 19730400713. The reversal of 19730400696 is 69600403791.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137016600 + ... + 137016743.

It is an arithmetic number, because the mean of its divisors is an integer number (2226520920).

Almost surely, 2^19730400696 is an apocalyptic number.

It is an amenable number.

19730400696 is an abundant number, since it is smaller than the sum of its proper divisors (33706101384).

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

19730400696 is a wasteful number, since it uses less digits than its factorization.

19730400696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274033355 (or 274033348 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 19730400696 in words is "nineteen billion, seven hundred thirty million, four hundred thousand, six hundred ninety-six".