7426327644 has 96 divisors (see below), whose sum is σ = 19676321280. Its totient is φ = 2421619200.

The previous prime is 7426327603. The next prime is 7426327673. The reversal of 7426327644 is 4467236247.

7426327644 is a `hidden beast` number, since 7 + 4 + 2 + 632 + 7 + 6 + 4 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 7426327644.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1000812 + ... + 1008204.

It is an arithmetic number, because the mean of its divisors is an integer number (204961680).

Almost surely, 2^7426327644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7426327644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9838160640).

7426327644 is an abundant number, since it is smaller than the sum of its proper divisors (12249993636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7426327644 is a wasteful number, since it uses less digits than its factorization.

7426327644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7608 (or 7600 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 45.

The square root of 7426327644 is about 86176.1431255774. The cubic root of 7426327644 is about 1951.0034409521.

The spelling of 7426327644 in words is "seven billion, four hundred twenty-six million, three hundred twenty-seven thousand, six hundred forty-four".