7426996639 has 4 divisors (see below), whose sum is σ = 7435849680. Its totient is φ = 7418143600.

The previous prime is 7426996613. The next prime is 7426996649. The reversal of 7426996639 is 9366996247.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7426996639 - 2⁵ = 7426996607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7426996649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4425262 + ... + 4426939.

It is an arithmetic number, because the mean of its divisors is an integer number (1858962420).

Almost surely, 2^7426996639 is an apocalyptic number.

7426996639 is a deficient number, since it is larger than the sum of its proper divisors (8853041).

7426996639 is an equidigital number, since it uses as much as digits as its factorization.

7426996639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8853040.

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

The square root of 7426996639 is about 86180.0245938698. The cubic root of 7426996639 is about 1951.0620240733.

The spelling of 7426996639 in words is "seven billion, four hundred twenty-six million, nine hundred ninety-six thousand, six hundred thirty-nine".