7642646965 has 8 divisors (see below), whose sum is σ = 9300348288. Its totient is φ = 6028002960.

The previous prime is 7642646959. The next prime is 7642646971. The reversal of 7642646965 is 5696462467.

It is an interprime number because it is at equal distance from previous prime (7642646959) and next prime (7642646971).

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

It is not a de Polignac number, because 7642646965 - 2⁵ = 7642646933 is a prime.

It is a super-2 number, since 2×7642646965² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 10763937 + ... + 10764646.

It is an arithmetic number, because the mean of its divisors is an integer number (1162543536).

Almost surely, 2^7642646965 is an apocalyptic number.

It is an amenable number.

7642646965 is a deficient number, since it is larger than the sum of its proper divisors (1657701323).

7642646965 is a wasteful number, since it uses less digits than its factorization.

7642646965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21528659.

The product of its digits is 13063680, while the sum is 55.

The square root of 7642646965 is about 87422.2338138302. The cubic root of 7642646965 is about 1969.7658310304.

The spelling of 7642646965 in words is "seven billion, six hundred forty-two million, six hundred forty-six thousand, nine hundred sixty-five".