627917957473 has 4 divisors (see below), whose sum is σ = 648173375488. Its totient is φ = 607662539460.

The previous prime is 627917957467. The next prime is 627917957543. The reversal of 627917957473 is 374759719726.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 627917957473 - 2²¹ = 627915860321 is a prime.

It is a super-2 number, since 2×627917957473² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 627917957399 and 627917957408.

It is not an unprimeable number, because it can be changed into a prime (627917957413) 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, 10127708961 + ... + 10127709022.

It is an arithmetic number, because the mean of its divisors is an integer number (162043343872).

Almost surely, 2^627917957473 is an apocalyptic number.

It is an amenable number.

627917957473 is a deficient number, since it is larger than the sum of its proper divisors (20255418015).

627917957473 is a wasteful number, since it uses less digits than its factorization.

627917957473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20255418014.

The product of its digits is 140026320, while the sum is 67.

The spelling of 627917957473 in words is "six hundred twenty-seven billion, nine hundred seventeen million, nine hundred fifty-seven thousand, four hundred seventy-three".