19706420125 has 32 divisors (see below), whose sum is σ = 29329058304. Its totient is φ = 12925440000.

The previous prime is 19706420119. The next prime is 19706420161. The reversal of 19706420125 is 52102460791.

It is not a de Polignac number, because 19706420125 - 2³ = 19706420117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 469476 + ... + 509725.

It is an arithmetic number, because the mean of its divisors is an integer number (916533072).

Almost surely, 2^19706420125 is an apocalyptic number.

It is an amenable number.

19706420125 is a deficient number, since it is larger than the sum of its proper divisors (9622638179).

19706420125 is an equidigital number, since it uses as much as digits as its factorization.

19706420125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979246 (or 979236 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 19706420125 in words is "nineteen billion, seven hundred six million, four hundred twenty thousand, one hundred twenty-five".