19974125953 has 8 divisors (see below), whose sum is σ = 21422102400. Its totient is φ = 18565820208.

The previous prime is 19974125929. The next prime is 19974126017. The reversal of 19974125953 is 35952147991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-19974125953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19974125894 and 19974125903.

It is not an unprimeable number, because it can be changed into a prime (19974125153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9916633 + ... + 9918646.

It is an arithmetic number, because the mean of its divisors is an integer number (2677762800).

Almost surely, 2^19974125953 is an apocalyptic number.

It is an amenable number.

19974125953 is a deficient number, since it is larger than the sum of its proper divisors (1447976447).

19974125953 is a wasteful number, since it uses less digits than its factorization.

19974125953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19835351.

The product of its digits is 3061800, while the sum is 55.

The spelling of 19974125953 in words is "nineteen billion, nine hundred seventy-four million, one hundred twenty-five thousand, nine hundred fifty-three".