6456499974 has 12 divisors (see below), whose sum is σ = 13989083316. Its totient is φ = 2152166652.

The previous prime is 6456499939. The next prime is 6456499979. The reversal of 6456499974 is 4799946546.

6456499974 is a `hidden beast` number, since 6 + 4 + 56 + 499 + 97 + 4 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6456499979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 179347204 + ... + 179347239.

It is an arithmetic number, because the mean of its divisors is an integer number (1165756943).

Almost surely, 2^6456499974 is an apocalyptic number.

6456499974 is an abundant number, since it is smaller than the sum of its proper divisors (7532583342).

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

6456499974 is a wasteful number, since it uses less digits than its factorization.

6456499974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358694451 (or 358694448 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 63.

The square root of 6456499974 is about 80352.3489015723. The cubic root of 6456499974 is about 1862.0830685981.

The spelling of 6456499974 in words is "six billion, four hundred fifty-six million, four hundred ninety-nine thousand, nine hundred seventy-four".