19125420039 has 24 divisors (see below), whose sum is σ = 30143602944. Its totient is φ = 11588634000.

The previous prime is 19125420029. The next prime is 19125420043. The reversal of 19125420039 is 93002452191.

It is not a de Polignac number, because 19125420039 - 2⁸ = 19125419783 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19125419985 and 19125420012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19125420029) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 499404 + ... + 536334.

It is an arithmetic number, because the mean of its divisors is an integer number (1255983456).

Almost surely, 2^19125420039 is an apocalyptic number.

19125420039 is a deficient number, since it is larger than the sum of its proper divisors (11018182905).

19125420039 is a wasteful number, since it uses less digits than its factorization.

19125420039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42179 (or 42176 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 19125420039 in words is "nineteen billion, one hundred twenty-five million, four hundred twenty thousand, thirty-nine".