19372929137 has 2 divisors, whose sum is σ = 19372929138. Its totient is φ = 19372929136.

The previous prime is 19372929133. The next prime is 19372929151. The reversal of 19372929137 is 73192927391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18900475441 + 472453696 = 137479^2 + 21736^2 .

It is a cyclic number.

It is not a de Polignac number, because 19372929137 - 2² = 19372929133 is a prime.

It is not a weakly prime, because it can be changed into another prime (19372929133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9686464568 + 9686464569.

It is an arithmetic number, because the mean of its divisors is an integer number (9686464569).

Almost surely, 2^19372929137 is an apocalyptic number.

It is an amenable number.

19372929137 is a deficient number, since it is larger than the sum of its proper divisors (1).

19372929137 is an equidigital number, since it uses as much as digits as its factorization.

19372929137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1285956, while the sum is 53.

The spelling of 19372929137 in words is "nineteen billion, three hundred seventy-two million, nine hundred twenty-nine thousand, one hundred thirty-seven".