6926389403959 has 2 divisors, whose sum is σ = 6926389403960. Its totient is φ = 6926389403958.

The previous prime is 6926389403939. The next prime is 6926389403971. The reversal of 6926389403959 is 9593049836296.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6926389403959 - 2¹³ = 6926389395767 is a prime.

It is a super-2 number, since 2×6926389403959² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6926389403891 and 6926389403900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6926389403929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3463194701979 + 3463194701980.

It is an arithmetic number, because the mean of its divisors is an integer number (3463194701980).

Almost surely, 2^{6926389403959} is an apocalyptic number.

6926389403959 is a deficient number, since it is larger than the sum of its proper divisors (1).

6926389403959 is an equidigital number, since it uses as much as digits as its factorization.

6926389403959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680244480, while the sum is 73.

The spelling of 6926389403959 in words is "six trillion, nine hundred twenty-six billion, three hundred eighty-nine million, four hundred three thousand, nine hundred fifty-nine".