19372128707 has 2 divisors, whose sum is σ = 19372128708. Its totient is φ = 19372128706.

The previous prime is 19372128667. The next prime is 19372128709. The reversal of 19372128707 is 70782127391.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19372128707 - 2³⁴ = 2192259523 is a prime.

Together with 19372128709, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19372128709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9686064353 + 9686064354.

It is an arithmetic number, because the mean of its divisors is an integer number (9686064354).

Almost surely, 2^19372128707 is an apocalyptic number.

19372128707 is a deficient number, since it is larger than the sum of its proper divisors (1).

19372128707 is an equidigital number, since it uses as much as digits as its factorization.

19372128707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 47.

The spelling of 19372128707 in words is "nineteen billion, three hundred seventy-two million, one hundred twenty-eight thousand, seven hundred seven".