19434375525 has 12 divisors (see below), whose sum is σ = 32131500992. Its totient is φ = 10365000240.

The previous prime is 19434375461. The next prime is 19434375547. The reversal of 19434375525 is 52557343491.

It is not a de Polignac number, because 19434375525 - 2⁶ = 19434375461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129562429 + ... + 129562578.

Almost surely, 2^19434375525 is an apocalyptic number.

19434375525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19434375525 is a deficient number, since it is larger than the sum of its proper divisors (12697125467).

19434375525 is a wasteful number, since it uses less digits than its factorization.

19434375525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259125020 (or 259125015 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 48.

The spelling of 19434375525 in words is "nineteen billion, four hundred thirty-four million, three hundred seventy-five thousand, five hundred twenty-five".