19139459241 has 24 divisors (see below), whose sum is σ = 30643302144. Its totient is φ = 10584030240.

The previous prime is 19139459233. The next prime is 19139459243. The reversal of 19139459241 is 14295493191.

It is not a de Polignac number, because 19139459241 - 2³ = 19139459233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19139459243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2095450 + ... + 2104563.

It is an arithmetic number, because the mean of its divisors is an integer number (1276804256).

Almost surely, 2^19139459241 is an apocalyptic number.

It is an amenable number.

19139459241 is a deficient number, since it is larger than the sum of its proper divisors (11503842903).

19139459241 is a wasteful number, since it uses less digits than its factorization.

19139459241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4200061 (or 4200054 counting only the distinct ones).

The product of its digits is 349920, while the sum is 48.

The spelling of 19139459241 in words is "nineteen billion, one hundred thirty-nine million, four hundred fifty-nine thousand, two hundred forty-one".