4639679520 has 192 divisors, whose sum is σ = 16977413376. Its totient is φ = 1043066880.

The previous prime is 4639679509. The next prime is 4639679557. The reversal of 4639679520 is 259769364.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193642 + ... + 216278.

It is an arithmetic number, because the mean of its divisors is an integer number (88424028).

Almost surely, 2^4639679520 is an apocalyptic number.

4639679520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4639679520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8488706688).

4639679520 is an abundant number, since it is smaller than the sum of its proper divisors (12337733856).

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

4639679520 is a wasteful number, since it uses less digits than its factorization.

4639679520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22723 (or 22715 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 51.

The square root of 4639679520 is about 68115.1930188853. The cubic root of 4639679520 is about 1667.8717819194.

The spelling of 4639679520 in words is "four billion, six hundred thirty-nine million, six hundred seventy-nine thousand, five hundred twenty".