6394872452 has 24 divisors (see below), whose sum is σ = 11694942336. Its totient is φ = 3056624928.

The previous prime is 6394872433. The next prime is 6394872457. The reversal of 6394872452 is 2542784936.

It is a self number, because there is not a number n which added to its sum of digits gives 6394872452.

It is not an unprimeable number, because it can be changed into a prime (6394872457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387443 + ... + 403610.

It is an arithmetic number, because the mean of its divisors is an integer number (487289264).

Almost surely, 2^6394872452 is an apocalyptic number.

It is an amenable number.

6394872452 is a deficient number, since it is larger than the sum of its proper divisors (5300069884).

6394872452 is a wasteful number, since it uses less digits than its factorization.

6394872452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791147 (or 791145 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 50.

The square root of 6394872452 is about 79967.9464035435. The cubic root of 6394872452 is about 1856.1395682704.

The spelling of 6394872452 in words is "six billion, three hundred ninety-four million, eight hundred seventy-two thousand, four hundred fifty-two".