7926946639 has 2 divisors, whose sum is σ = 7926946640. Its totient is φ = 7926946638.

The previous prime is 7926946597. The next prime is 7926946751. The reversal of 7926946639 is 9366496297.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7926946639 - 2⁹ = 7926946127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7926941639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3963473319 + 3963473320.

It is an arithmetic number, because the mean of its divisors is an integer number (3963473320).

Almost surely, 2^7926946639 is an apocalyptic number.

7926946639 is a deficient number, since it is larger than the sum of its proper divisors (1).

7926946639 is an equidigital number, since it uses as much as digits as its factorization.

7926946639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26453952, while the sum is 61.

The square root of 7926946639 is about 89033.4018163970. The cubic root of 7926946639 is about 1993.8935947992.

The spelling of 7926946639 in words is "seven billion, nine hundred twenty-six million, nine hundred forty-six thousand, six hundred thirty-nine".