4651992720 has 120 divisors (see below), whose sum is σ = 15692317056. Its totient is φ = 1235023104.

The previous prime is 4651992643. The next prime is 4651992731. The reversal of 4651992720 is 272991564.

4651992720 is a `hidden beast` number, since 46 + 519 + 92 + 7 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 149209 + ... + 177671.

Almost surely, 2^4651992720 is an apocalyptic number.

4651992720 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 4651992720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7846158528).

4651992720 is an abundant number, since it is smaller than the sum of its proper divisors (11040324336).

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

4651992720 is a wasteful number, since it uses less digits than its factorization.

4651992720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28709 (or 28700 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 4651992720 is about 68205.5182518248. The cubic root of 4651992720 is about 1669.3459281379.

The spelling of 4651992720 in words is "four billion, six hundred fifty-one million, nine hundred ninety-two thousand, seven hundred twenty".