627665264415247 has 4 divisors (see below), whose sum is σ = 628644461396256. Its totient is φ = 626686067434240.

The previous prime is 627665264415223. The next prime is 627665264415313. The reversal of 627665264415247 is 742514462566726.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 627665264415247 - 2²³ = 627665256026639 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 (627665264415947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489598489543 + ... + 489598490824.

It is an arithmetic number, because the mean of its divisors is an integer number (157161115349064).

Almost surely, 2^{627665264415247} is an apocalyptic number.

627665264415247 is a deficient number, since it is larger than the sum of its proper divisors (979196981009).

627665264415247 is an equidigital number, since it uses as much as digits as its factorization.

627665264415247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979196981008.

The product of its digits is 812851200, while the sum is 67.

The spelling of 627665264415247 in words is "six hundred twenty-seven trillion, six hundred sixty-five billion, two hundred sixty-four million, four hundred fifteen thousand, two hundred forty-seven".