6457115515 has 8 divisors (see below), whose sum is σ = 8156356560. Its totient is φ = 4893813792.

The previous prime is 6457115513. The next prime is 6457115549. The reversal of 6457115515 is 5155117546.

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

It is a cyclic number.

It is not a de Polignac number, because 6457115515 - 2¹ = 6457115513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6457115513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33984724 + ... + 33984913.

It is an arithmetic number, because the mean of its divisors is an integer number (1019544570).

Almost surely, 2^6457115515 is an apocalyptic number.

6457115515 is a deficient number, since it is larger than the sum of its proper divisors (1699241045).

6457115515 is a wasteful number, since it uses less digits than its factorization.

6457115515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67969661.

The product of its digits is 105000, while the sum is 40.

The square root of 6457115515 is about 80356.1790716806. The cubic root of 6457115515 is about 1862.1422416308.

The spelling of 6457115515 in words is "six billion, four hundred fifty-seven million, one hundred fifteen thousand, five hundred fifteen".