4546881918 has 32 divisors (see below), whose sum is σ = 10127251200. Its totient is φ = 1512166968.

The previous prime is 4546881901. The next prime is 4546881923. The reversal of 4546881918 is 8191886454.

It is a happy number.

4546881918 is a `hidden beast` number, since 4 + 546 + 8 + 8 + 1 + 91 + 8 = 666.

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

It is a congruent 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, 72196 + ... + 119607.

It is an arithmetic number, because the mean of its divisors is an integer number (316476600).

Almost surely, 2^4546881918 is an apocalyptic number.

4546881918 is an abundant number, since it is smaller than the sum of its proper divisors (5580369282).

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

4546881918 is a wasteful number, since it uses less digits than its factorization.

4546881918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192253 (or 192247 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 54.

The square root of 4546881918 is about 67430.5710935329. The cubic root of 4546881918 is about 1656.6771870712.

The spelling of 4546881918 in words is "four billion, five hundred forty-six million, eight hundred eighty-one thousand, nine hundred eighteen".