7639913890867 has 2 divisors, whose sum is σ = 7639913890868. Its totient is φ = 7639913890866.

The previous prime is 7639913890801. The next prime is 7639913890927. The reversal of 7639913890867 is 7680983199367.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7639913890867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7639913890793 and 7639913890802.

It is not a weakly prime, because it can be changed into another prime (7639913800867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3819956945433 + 3819956945434.

It is an arithmetic number, because the mean of its divisors is an integer number (3819956945434).

Almost surely, 2^{7639913890867} is an apocalyptic number.

7639913890867 is a deficient number, since it is larger than the sum of its proper divisors (1).

7639913890867 is an equidigital number, since it uses as much as digits as its factorization.

7639913890867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 740710656, while the sum is 76.

The spelling of 7639913890867 in words is "seven trillion, six hundred thirty-nine billion, nine hundred thirteen million, eight hundred ninety thousand, eight hundred sixty-seven".