6460120015 has 4 divisors (see below), whose sum is σ = 7752144024. Its totient is φ = 5168096008.

The previous prime is 6460120001. The next prime is 6460120019. The reversal of 6460120015 is 5100210646.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5100210646 = 2 ⋅2550105323.

It is a cyclic number.

It is not a de Polignac number, because 6460120015 - 2¹⁵ = 6460087247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6460120019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646011997 + ... + 646012006.

It is an arithmetic number, because the mean of its divisors is an integer number (1938036006).

Almost surely, 2^6460120015 is an apocalyptic number.

6460120015 is a deficient number, since it is larger than the sum of its proper divisors (1292024009).

6460120015 is a wasteful number, since it uses less digits than its factorization.

6460120015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292024008.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 6460120015 is about 80374.8717883892. The cubic root of 6460120015 is about 1862.4310155072.

The spelling of 6460120015 in words is "six billion, four hundred sixty million, one hundred twenty thousand, fifteen".