7642356791 has 2 divisors, whose sum is σ = 7642356792. Its totient is φ = 7642356790.

The previous prime is 7642356779. The next prime is 7642356803. The reversal of 7642356791 is 1976532467.

It is a balanced prime because it is at equal distance from previous prime (7642356779) and next prime (7642356803).

It is a cyclic number.

It is not a de Polignac number, because 7642356791 - 2⁶ = 7642356727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7642358791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3821178395 + 3821178396.

It is an arithmetic number, because the mean of its divisors is an integer number (3821178396).

Almost surely, 2^7642356791 is an apocalyptic number.

7642356791 is a deficient number, since it is larger than the sum of its proper divisors (1).

7642356791 is an equidigital number, since it uses as much as digits as its factorization.

7642356791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 50.

The square root of 7642356791 is about 87420.5741859432. The cubic root of 7642356791 is about 1969.7409015320.

The spelling of 7642356791 in words is "seven billion, six hundred forty-two million, three hundred fifty-six thousand, seven hundred ninety-one".