20313173626 has 12 divisors (see below), whose sum is σ = 31852133082. Its totient is φ = 9714995576.

The previous prime is 20313173609. The next prime is 20313173633. The reversal of 20313173626 is 62637131302.

It can be written as a sum of positive squares in only one way, i.e., 11870320401 + 8442853225 = 108951^2 + 91885^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20313173591 and 20313173600.

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 5 ways as a sum of consecutive naturals, for example, 9598741 + ... + 9600856.

Almost surely, 2^20313173626 is an apocalyptic number.

20313173626 is a deficient number, since it is larger than the sum of its proper divisors (11538959456).

20313173626 is a wasteful number, since it uses less digits than its factorization.

20313173626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19199645 (or 19199622 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 34.

The spelling of 20313173626 in words is "twenty billion, three hundred thirteen million, one hundred seventy-three thousand, six hundred twenty-six".