19352564137 has 2 divisors, whose sum is σ = 19352564138. Its totient is φ = 19352564136.

The previous prime is 19352564117. The next prime is 19352564167. The reversal of 19352564137 is 73146525391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17715876201 + 1636687936 = 133101^2 + 40456^2 .

It is a cyclic number.

It is not a de Polignac number, because 19352564137 - 2¹⁵ = 19352531369 is a prime.

It is not a weakly prime, because it can be changed into another prime (19352564117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9676282068 + 9676282069.

It is an arithmetic number, because the mean of its divisors is an integer number (9676282069).

Almost surely, 2^19352564137 is an apocalyptic number.

It is an amenable number.

19352564137 is a deficient number, since it is larger than the sum of its proper divisors (1).

19352564137 is an equidigital number, since it uses as much as digits as its factorization.

19352564137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 46.

The spelling of 19352564137 in words is "nineteen billion, three hundred fifty-two million, five hundred sixty-four thousand, one hundred thirty-seven".