6451713616 has 20 divisors (see below), whose sum is σ = 12502449792. Its totient is φ = 3225274976.

The previous prime is 6451713581. The next prime is 6451713637. The reversal of 6451713616 is 6163171546.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63411 + ... + 130093.

Almost surely, 2^6451713616 is an apocalyptic number.

It is an amenable number.

6451713616 is a deficient number, since it is larger than the sum of its proper divisors (6050736176).

6451713616 is a wasteful number, since it uses less digits than its factorization.

6451713616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72738 (or 72732 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 6451713616 is about 80322.5598197667. The cubic root of 6451713616 is about 1861.6228192623.

The spelling of 6451713616 in words is "six billion, four hundred fifty-one million, seven hundred thirteen thousand, six hundred sixteen".