625703823361 has 4 divisors (see below), whose sum is σ = 647279817300. Its totient is φ = 604127829424.

The previous prime is 625703823359. The next prime is 625703823389. The reversal of 625703823361 is 163328307526.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 400606714225 + 225097109136 = 632935^2 + 474444^2 .

It is a cyclic number.

It is not a de Polignac number, because 625703823361 - 2¹ = 625703823359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (625703833361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10787996926 + ... + 10787996983.

It is an arithmetic number, because the mean of its divisors is an integer number (161819954325).

Almost surely, 2^625703823361 is an apocalyptic number.

It is an amenable number.

625703823361 is a deficient number, since it is larger than the sum of its proper divisors (21575993939).

625703823361 is a wasteful number, since it uses less digits than its factorization.

625703823361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21575993938.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 625703823361 in words is "six hundred twenty-five billion, seven hundred three million, eight hundred twenty-three thousand, three hundred sixty-one".