4913781612 has 48 divisors (see below), whose sum is σ = 11766378624. Its totient is φ = 1595088000.

The previous prime is 4913781601. The next prime is 4913781629. The reversal of 4913781612 is 2161873194.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272187 + ... + 289677.

It is an arithmetic number, because the mean of its divisors is an integer number (245132888).

Almost surely, 2^4913781612 is an apocalyptic number.

It is an amenable number.

4913781612 is an abundant number, since it is smaller than the sum of its proper divisors (6852597012).

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

4913781612 is a wasteful number, since it uses less digits than its factorization.

4913781612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18110 (or 18108 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 4913781612 is about 70098.3709653798. The cubic root of 4913781612 is about 1700.0901465461.

The spelling of 4913781612 in words is "four billion, nine hundred thirteen million, seven hundred eighty-one thousand, six hundred twelve".