20085690780693 has 32 divisors (see below), whose sum is σ = 29768353528320. Its totient is φ = 13385163168000.

The previous prime is 20085690780691. The next prime is 20085690780713. The reversal of 20085690780693 is 39608709658002.

20085690780693 is a `hidden beast` number, since 2 + 0 + 0 + 8 + 569 + 0 + 7 + 8 + 0 + 69 + 3 = 666.

It is not a de Polignac number, because 20085690780693 - 2¹ = 20085690780691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20085690780693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20085690780691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 920633121 + ... + 920654937.

It is an arithmetic number, because the mean of its divisors is an integer number (930261047760).

Almost surely, 2^{20085690780693} is an apocalyptic number.

It is an amenable number.

20085690780693 is a deficient number, since it is larger than the sum of its proper divisors (9682662747627).

20085690780693 is a wasteful number, since it uses less digits than its factorization.

20085690780693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33754 (or 33748 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 63.

The spelling of 20085690780693 in words is "twenty trillion, eighty-five billion, six hundred ninety million, seven hundred eighty thousand, six hundred ninety-three".