7642960647 has 8 divisors (see below), whose sum is σ = 11646416256. Its totient is φ = 4367406072.

The previous prime is 7642960621. The next prime is 7642960669. The reversal of 7642960647 is 7460692467.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7642960647 - 2¹² = 7642956551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7642960647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7642960607) 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 in 7 ways as a sum of consecutive naturals, for example, 181975233 + ... + 181975274.

It is an arithmetic number, because the mean of its divisors is an integer number (1455802032).

Almost surely, 2^7642960647 is an apocalyptic number.

7642960647 is a deficient number, since it is larger than the sum of its proper divisors (4003455609).

7642960647 is a wasteful number, since it uses less digits than its factorization.

7642960647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363950517.

The product of its (nonzero) digits is 3048192, while the sum is 51.

The square root of 7642960647 is about 87424.0278584784. The cubic root of 7642960647 is about 1969.7927794439.

The spelling of 7642960647 in words is "seven billion, six hundred forty-two million, nine hundred sixty thousand, six hundred forty-seven".