626742053345 has 8 divisors (see below), whose sum is σ = 770434134120. Its totient is φ = 489164529280.

The previous prime is 626742053323. The next prime is 626742053363. The reversal of 626742053345 is 543350247626.

It can be written as a sum of positive squares in 4 ways, for example, as 1636768849 + 625105284496 = 40457^2 + 790636^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 626742053345 - 2⁸ = 626742053089 is a prime.

It is a super-2 number, since 2×626742053345² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 626742053345.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1528638950 + ... + 1528639359.

It is an arithmetic number, because the mean of its divisors is an integer number (96304266765).

Almost surely, 2^626742053345 is an apocalyptic number.

It is an amenable number.

626742053345 is a deficient number, since it is larger than the sum of its proper divisors (143692080775).

626742053345 is a wasteful number, since it uses less digits than its factorization.

626742053345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057278355.

The product of its (nonzero) digits is 3628800, while the sum is 47.

The spelling of 626742053345 in words is "six hundred twenty-six billion, seven hundred forty-two million, fifty-three thousand, three hundred forty-five".