19725097067 has 32 divisors (see below), whose sum is σ = 21998592000. Its totient is φ = 17573811840.

The previous prime is 19725097039. The next prime is 19725097103. The reversal of 19725097067 is 76079052791.

It is not a de Polignac number, because 19725097067 - 2⁶ = 19725097003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19725097867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11212934 + ... + 11214692.

It is an arithmetic number, because the mean of its divisors is an integer number (687456000).

Almost surely, 2^19725097067 is an apocalyptic number.

19725097067 is a deficient number, since it is larger than the sum of its proper divisors (2273494933).

19725097067 is a wasteful number, since it uses less digits than its factorization.

19725097067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091.

The product of its (nonzero) digits is 1666980, while the sum is 53.

The spelling of 19725097067 in words is "nineteen billion, seven hundred twenty-five million, ninety-seven thousand, sixty-seven".