1627918258201 has 3 divisors (see below), whose sum is σ = 1627919534101. Its totient is φ = 1627916982302.

The previous prime is 1627918258181. The next prime is 1627918258207. The reversal of 1627918258201 is 1028528197261.

The square root of 1627918258201 is 1275899.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1627918258201 - 2⁷ = 1627918258073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1627918258207) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 637950 + ... + 1913848.

Almost surely, 2^{1627918258201} is an apocalyptic number.

1627918258201 is the 1275899-th square number.

1627918258201 is the 637950-th centered octagonal number.

It is an amenable number.

1627918258201 is a deficient number, since it is larger than the sum of its proper divisors (1275900).

1627918258201 is an frugal number, since it uses more digits than its factorization.

1627918258201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551798 (or 1275899 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 52.

The spelling of 1627918258201 in words is "one trillion, six hundred twenty-seven billion, nine hundred eighteen million, two hundred fifty-eight thousand, two hundred one".