7650643758 has 16 divisors (see below), whose sum is σ = 15828918480. Its totient is φ = 2462276096.

The previous prime is 7650643753. The next prime is 7650643769. The reversal of 7650643758 is 8573460567.

It is a self number, because there is not a number n which added to its sum of digits gives 7650643758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7650643753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21984435 + ... + 21984782.

It is an arithmetic number, because the mean of its divisors is an integer number (989307405).

Almost surely, 2^7650643758 is an apocalyptic number.

7650643758 is an abundant number, since it is smaller than the sum of its proper divisors (8178274722).

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

7650643758 is a wasteful number, since it uses less digits than its factorization.

7650643758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43969251.

The product of its (nonzero) digits is 4233600, while the sum is 51.

The square root of 7650643758 is about 87467.9584648001. The cubic root of 7650643758 is about 1970.4526052578.

The spelling of 7650643758 in words is "seven billion, six hundred fifty million, six hundred forty-three thousand, seven hundred fifty-eight".