7613206640 has 120 divisors (see below), whose sum is σ = 19576479168. Its totient is φ = 2750991360.

The previous prime is 7613206639. The next prime is 7613206651. The reversal of 7613206640 is 466023167.

It is a self number, because there is not a number n which added to its sum of digits gives 7613206640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 629450 + ... + 641430.

Almost surely, 2^7613206640 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 7613206640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9788239584).

7613206640 is an abundant number, since it is smaller than the sum of its proper divisors (11963272528).

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

7613206640 is a wasteful number, since it uses less digits than its factorization.

7613206640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12067 (or 12048 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 7613206640 is about 87253.6912686220. The cubic root of 7613206640 is about 1967.2333241525.

The spelling of 7613206640 in words is "seven billion, six hundred thirteen million, two hundred six thousand, six hundred forty".