6427565725663 has 8 divisors (see below), whose sum is σ = 6436482594480. Its totient is φ = 6418654564800.

The previous prime is 6427565725573. The next prime is 6427565725681. The reversal of 6427565725663 is 3665275657246.

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 6427565725663 - 2²⁹ = 6427028854751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6427565725595 and 6427565725604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6427565735663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 829188 + ... + 3680038.

It is an arithmetic number, because the mean of its divisors is an integer number (804560324310).

Almost surely, 2^{6427565725663} is an apocalyptic number.

6427565725663 is a deficient number, since it is larger than the sum of its proper divisors (8916868817).

6427565725663 is a wasteful number, since it uses less digits than its factorization.

6427565725663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2853977.

The product of its digits is 381024000, while the sum is 64.

The spelling of 6427565725663 in words is "six trillion, four hundred twenty-seven billion, five hundred sixty-five million, seven hundred twenty-five thousand, six hundred sixty-three".