1930910868239 has 2 divisors, whose sum is σ = 1930910868240. Its totient is φ = 1930910868238.

The previous prime is 1930910868221. The next prime is 1930910868311. The reversal of 1930910868239 is 9328680190391.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1930910868239 - 2²⁸ = 1930642432783 is a prime.

It is a super-2 number, since 2×1930910868239² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1930910867239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965455434119 + 965455434120.

It is an arithmetic number, because the mean of its divisors is an integer number (965455434120).

Almost surely, 2^{1930910868239} is an apocalyptic number.

1930910868239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1930910868239 is an equidigital number, since it uses as much as digits as its factorization.

1930910868239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5038848, while the sum is 59.

The spelling of 1930910868239 in words is "one trillion, nine hundred thirty billion, nine hundred ten million, eight hundred sixty-eight thousand, two hundred thirty-nine".