19739072925 has 384 divisors, whose sum is σ = 45997056000. Its totient is φ = 8155468800.

The previous prime is 19739072869. The next prime is 19739072989. The reversal of 19739072925 is 52927093791.

It is not a de Polignac number, because 19739072925 - 2⁸ = 19739072669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 86196711 + ... + 86196939.

It is an arithmetic number, because the mean of its divisors is an integer number (119784000).

Almost surely, 2^19739072925 is an apocalyptic number.

19739072925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19739072925 is an abundant number, since it is smaller than the sum of its proper divisors (26257983075).

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

19739072925 is a wasteful number, since it uses less digits than its factorization.

19739072925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 2143260, while the sum is 54.

The spelling of 19739072925 in words is "nineteen billion, seven hundred thirty-nine million, seventy-two thousand, nine hundred twenty-five".