627891294445 has 8 divisors (see below), whose sum is σ = 773833595544. Its totient is φ = 488737007424.

The previous prime is 627891294413. The next prime is 627891294479. The reversal of 627891294445 is 544492198726.

It can be written as a sum of positive squares in 4 ways, for example, as 239141538441 + 388749756004 = 489021^2 + 623498^2 .

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 627891294445 - 2⁵ = 627891294413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1697003314 + ... + 1697003683.

It is an arithmetic number, because the mean of its divisors is an integer number (96729199443).

Almost surely, 2^627891294445 is an apocalyptic number.

It is an amenable number.

627891294445 is a deficient number, since it is larger than the sum of its proper divisors (145942301099).

627891294445 is a wasteful number, since it uses less digits than its factorization.

627891294445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3394007039.

The product of its digits is 34836480, while the sum is 61.

The spelling of 627891294445 in words is "six hundred twenty-seven billion, eight hundred ninety-one million, two hundred ninety-four thousand, four hundred forty-five".