19422730927 has 2 divisors, whose sum is σ = 19422730928. Its totient is φ = 19422730926.

The previous prime is 19422730919. The next prime is 19422730939. The reversal of 19422730927 is 72903722491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19422730927 - 2³ = 19422730919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19422730127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9711365463 + 9711365464.

It is an arithmetic number, because the mean of its divisors is an integer number (9711365464).

Almost surely, 2^19422730927 is an apocalyptic number.

19422730927 is a deficient number, since it is larger than the sum of its proper divisors (1).

19422730927 is an equidigital number, since it uses as much as digits as its factorization.

19422730927 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 19422730927 in words is "nineteen billion, four hundred twenty-two million, seven hundred thirty thousand, nine hundred twenty-seven".