19119963939 has 16 divisors (see below), whose sum is σ = 25687440000. Its totient is φ = 12649853376.

The previous prime is 19119963931. The next prime is 19119963943. The reversal of 19119963939 is 93936991191.

It is not a de Polignac number, because 19119963939 - 2³ = 19119963931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19119963931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232287 + ... + 303639.

It is an arithmetic number, because the mean of its divisors is an integer number (1605465000).

Almost surely, 2^19119963939 is an apocalyptic number.

19119963939 is a deficient number, since it is larger than the sum of its proper divisors (6567476061).

19119963939 is a wasteful number, since it uses less digits than its factorization.

19119963939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72034.

The product of its digits is 3188646, while the sum is 60.

The spelling of 19119963939 in words is "nineteen billion, one hundred nineteen million, nine hundred sixty-three thousand, nine hundred thirty-nine".