6405427140815 has 8 divisors (see below), whose sum is σ = 7686559123008. Its totient is φ = 5124310676640.

The previous prime is 6405427140803. The next prime is 6405427140907. The reversal of 6405427140815 is 5180417245046.

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

It is not a de Polignac number, because 6405427140815 - 2¹⁶ = 6405427075279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6405427140815.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2951207 + ... + 4639016.

It is an arithmetic number, because the mean of its divisors is an integer number (960819890376).

Almost surely, 2^{6405427140815} is an apocalyptic number.

6405427140815 is a deficient number, since it is larger than the sum of its proper divisors (1281131982193).

6405427140815 is a wasteful number, since it uses less digits than its factorization.

6405427140815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7759009.

The product of its (nonzero) digits is 1075200, while the sum is 47.

The spelling of 6405427140815 in words is "six trillion, four hundred five billion, four hundred twenty-seven million, one hundred forty thousand, eight hundred fifteen".