4640643510 has 96 divisors (see below), whose sum is σ = 12239868960. Its totient is φ = 1124487168.

The previous prime is 4640643479. The next prime is 4640643521. The reversal of 4640643510 is 153460464.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 242202 + ... + 260658.

It is an arithmetic number, because the mean of its divisors is an integer number (127498635).

Almost surely, 2^4640643510 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4640643510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6119934480).

4640643510 is an abundant number, since it is smaller than the sum of its proper divisors (7599225450).

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

4640643510 is a wasteful number, since it uses less digits than its factorization.

4640643510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18530 (or 18513 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 4640643510 is about 68122.2688259867. The cubic root of 4640643510 is about 1667.9872856141.

The spelling of 4640643510 in words is "four billion, six hundred forty million, six hundred forty-three thousand, five hundred ten".