19725386996 has 24 divisors (see below), whose sum is σ = 39651042816. Its totient is φ = 8410822560.

The previous prime is 19725386927. The next prime is 19725387007. The reversal of 19725386996 is 69968352791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1782500 + ... + 1793531.

It is an arithmetic number, because the mean of its divisors is an integer number (1652126784).

Almost surely, 2^19725386996 is an apocalyptic number.

It is an amenable number.

19725386996 is an abundant number, since it is smaller than the sum of its proper divisors (19925655820).

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

19725386996 is a wasteful number, since it uses less digits than its factorization.

19725386996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3576239 (or 3576237 counting only the distinct ones).

The product of its digits is 44089920, while the sum is 65.

The spelling of 19725386996 in words is "nineteen billion, seven hundred twenty-five million, three hundred eighty-six thousand, nine hundred ninety-six".