20785702310804 has 36 divisors (see below), whose sum is σ = 37987281360252. Its totient is φ = 9948057999360.

The previous prime is 20785702310767. The next prime is 20785702310843. The reversal of 20785702310804 is 40801320758702.

It can be written as a sum of positive squares in 6 ways, for example, as 7934925610000 + 12850776700804 = 2816900^2 + 3584798^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28806557 + ... + 29519300.

It is an arithmetic number, because the mean of its divisors is an integer number (1055202260007).

Almost surely, 2^{20785702310804} is an apocalyptic number.

It is an amenable number.

20785702310804 is a deficient number, since it is larger than the sum of its proper divisors (17201579049448).

20785702310804 is a wasteful number, since it uses less digits than its factorization.

20785702310804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58325996 (or 58325953 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 47.

The spelling of 20785702310804 in words is "twenty trillion, seven hundred eighty-five billion, seven hundred two million, three hundred ten thousand, eight hundred four".