626305642061013 has 16 divisors (see below), whose sum is σ = 949438354891840. Its totient is φ = 407826929713392.

The previous prime is 626305642061009. The next prime is 626305642061041. The reversal of 626305642061013 is 310160246503626.

626305642061013 is a `hidden beast` number, since 6 + 2 + 6 + 3 + 0 + 5 + 6 + 4 + 20 + 610 + 1 + 3 = 666.

It is not a de Polignac number, because 626305642061013 - 2² = 626305642061009 is a prime.

It is a super-3 number, since 3×626305642061013³ (a number of 45 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 626305642061013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (626305642068013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269726804206 + ... + 269726806527.

It is an arithmetic number, because the mean of its divisors is an integer number (59339897180740).

Almost surely, 2^{626305642061013} is an apocalyptic number.

It is an amenable number.

626305642061013 is a deficient number, since it is larger than the sum of its proper divisors (323132712830827).

626305642061013 is a wasteful number, since it uses less digits than its factorization.

626305642061013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539453610785 (or 539453610779 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

Adding to 626305642061013 its reverse (310160246503626), we get a palindrome (936465888564639).

The spelling of 626305642061013 in words is "six hundred twenty-six trillion, three hundred five billion, six hundred forty-two million, sixty-one thousand, thirteen".