7644670432 has 144 divisors (see below), whose sum is σ = 18827756640. Its totient is φ = 2982666240.

The previous prime is 7644670421. The next prime is 7644670441. The reversal of 7644670432 is 2340764467.

It is a super-3 number, since 3×7644670432³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3658444 + ... + 3660532.

It is an arithmetic number, because the mean of its divisors is an integer number (130748310).

Almost surely, 2^7644670432 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 7644670432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9413878320).

7644670432 is an abundant number, since it is smaller than the sum of its proper divisors (11183086208).

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

7644670432 is a wasteful number, since it uses less digits than its factorization.

7644670432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185 (or 2146 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 43.

The square root of 7644670432 is about 87433.8060020265. The cubic root of 7644670432 is about 1969.9396540732.

The spelling of 7644670432 in words is "seven billion, six hundred forty-four million, six hundred seventy thousand, four hundred thirty-two".