19152132938 has 4 divisors (see below), whose sum is σ = 28728199410. Its totient is φ = 9576066468.

The previous prime is 19152132929. The next prime is 19152132949. The reversal of 19152132938 is 83923125191.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18538728649 + 613404289 = 136157^2 + 24767^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4788033233 + ... + 4788033236.

Almost surely, 2^19152132938 is an apocalyptic number.

19152132938 is a deficient number, since it is larger than the sum of its proper divisors (9576066472).

19152132938 is an equidigital number, since it uses as much as digits as its factorization.

19152132938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9576066471.

The product of its digits is 116640, while the sum is 44.

The spelling of 19152132938 in words is "nineteen billion, one hundred fifty-two million, one hundred thirty-two thousand, nine hundred thirty-eight".