4640786172 has 36 divisors (see below), whose sum is σ = 12797320536. Its totient is φ = 1406298720.

The previous prime is 4640786167. The next prime is 4640786281. The reversal of 4640786172 is 2716870464.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5859183 + ... + 5859974.

It is an arithmetic number, because the mean of its divisors is an integer number (355481126).

Almost surely, 2^4640786172 is an apocalyptic number.

It is an amenable number.

4640786172 is an abundant number, since it is smaller than the sum of its proper divisors (8156534364).

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

4640786172 is a wasteful number, since it uses less digits than its factorization.

4640786172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11719178 (or 11719173 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 4640786172 is about 68123.3159204688. The cubic root of 4640786172 is about 1668.0043777812.

The spelling of 4640786172 in words is "four billion, six hundred forty million, seven hundred eighty-six thousand, one hundred seventy-two".