20860684263 has 6 divisors (see below), whose sum is σ = 30132099504. Its totient is φ = 13907122836.

The previous prime is 20860684261. The next prime is 20860684283. The reversal of 20860684263 is 36248606802.

It is not a de Polignac number, because 20860684263 - 2¹ = 20860684261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20860684261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1158926895 + ... + 1158926912.

It is an arithmetic number, because the mean of its divisors is an integer number (5022016584).

Almost surely, 2^20860684263 is an apocalyptic number.

20860684263 is a deficient number, since it is larger than the sum of its proper divisors (9271415241).

20860684263 is a wasteful number, since it uses less digits than its factorization.

20860684263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2317853813 (or 2317853810 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 20860684263 in words is "twenty billion, eight hundred sixty million, six hundred eighty-four thousand, two hundred sixty-three".