6404272102655 has 8 divisors (see below), whose sum is σ = 8783001740832. Its totient is φ = 4391500870368.

The previous prime is 6404272102637. The next prime is 6404272102673. The reversal of 6404272102655 is 5562012724046.

It is an interprime number because it is at equal distance from previous prime (6404272102637) and next prime (6404272102673).

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 6404272102655 - 2⁸ = 6404272102399 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 91489601432 + ... + 91489601501.

It is an arithmetic number, because the mean of its divisors is an integer number (1097875217604).

Almost surely, 2^{6404272102655} is an apocalyptic number.

6404272102655 is a deficient number, since it is larger than the sum of its proper divisors (2378729638177).

6404272102655 is a wasteful number, since it uses less digits than its factorization.

6404272102655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182979202945.

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 6404272102655 in words is "six trillion, four hundred four billion, two hundred seventy-two million, one hundred two thousand, six hundred fifty-five".