6449188372 has 12 divisors (see below), whose sum is σ = 12312086976. Its totient is φ = 2931449240.

The previous prime is 6449188363. The next prime is 6449188433. The reversal of 6449188372 is 2738819446.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 73286188 + ... + 73286275.

It is an arithmetic number, because the mean of its divisors is an integer number (1026007248).

Almost surely, 2^6449188372 is an apocalyptic number.

It is an amenable number.

6449188372 is a deficient number, since it is larger than the sum of its proper divisors (5862898604).

6449188372 is a wasteful number, since it uses less digits than its factorization.

6449188372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146572478 (or 146572476 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 52.

The square root of 6449188372 is about 80306.8388868594. The cubic root of 6449188372 is about 1861.3799036790.

The spelling of 6449188372 in words is "six billion, four hundred forty-nine million, one hundred eighty-eight thousand, three hundred seventy-two".