4651999506 has 64 divisors (see below), whose sum is σ = 12888668160. Its totient is φ = 1208310480.

The previous prime is 4651999483. The next prime is 4651999519. The reversal of 4651999506 is 6059991564.

4651999506 is a `hidden beast` number, since 46 + 5 + 1 + 9 + 99 + 506 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 555246 + ... + 563561.

It is an arithmetic number, because the mean of its divisors is an integer number (201385440).

Almost surely, 2^4651999506 is an apocalyptic number.

4651999506 is an abundant number, since it is smaller than the sum of its proper divisors (8236668654).

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

4651999506 is a wasteful number, since it uses less digits than its factorization.

4651999506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118836 (or 1118830 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 54.

The square root of 4651999506 is about 68205.5679985146. The cubic root of 4651999506 is about 1669.3467398457.

The spelling of 4651999506 in words is "four billion, six hundred fifty-one million, nine hundred ninety-nine thousand, five hundred six".