19133138116 has 6 divisors (see below), whose sum is σ = 33482991710. Its totient is φ = 9566569056.

The previous prime is 19133138113. The next prime is 19133138119. The reversal of 19133138116 is 61183133191.

It is an interprime number because it is at equal distance from previous prime (19133138113) and next prime (19133138119).

It can be written as a sum of positive squares in only one way, i.e., 19132422400 + 715716 = 138320^2 + 846^2 .

It is not an unprimeable number, because it can be changed into a prime (19133138113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2391642261 + ... + 2391642268.

Almost surely, 2^19133138116 is an apocalyptic number.

It is an amenable number.

19133138116 is a deficient number, since it is larger than the sum of its proper divisors (14349853594).

19133138116 is a wasteful number, since it uses less digits than its factorization.

19133138116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4783284533 (or 4783284531 counting only the distinct ones).

The product of its digits is 11664, while the sum is 37.

The spelling of 19133138116 in words is "nineteen billion, one hundred thirty-three million, one hundred thirty-eight thousand, one hundred sixteen".