6453640715 has 8 divisors (see below), whose sum is σ = 8011416240. Its totient is φ = 4984880992.

The previous prime is 6453640709. The next prime is 6453640727. The reversal of 6453640715 is 5170463546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6453640715 - 2⁶ = 6453640651 is a prime.

It is a super-2 number, since 2×6453640715² = 83298956956611422450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22253789 + ... + 22254078.

It is an arithmetic number, because the mean of its divisors is an integer number (1001427030).

Almost surely, 2^6453640715 is an apocalyptic number.

6453640715 is a deficient number, since it is larger than the sum of its proper divisors (1557775525).

6453640715 is a wasteful number, since it uses less digits than its factorization.

6453640715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44507901.

The product of its (nonzero) digits is 302400, while the sum is 41.

The square root of 6453640715 is about 80334.5549250134. The cubic root of 6453640715 is about 1861.8081537100.

The spelling of 6453640715 in words is "six billion, four hundred fifty-three million, six hundred forty thousand, seven hundred fifteen".