20826670311 has 12 divisors (see below), whose sum is σ = 30091206288. Its totient is φ = 13880644704.

The previous prime is 20826670303. The next prime is 20826670313. The reversal of 20826670311 is 11307662802.

It is not a de Polignac number, because 20826670311 - 2³ = 20826670303 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20826670313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281955 + ... + 348068.

It is an arithmetic number, because the mean of its divisors is an integer number (2507600524).

Almost surely, 2^20826670311 is an apocalyptic number.

20826670311 is a deficient number, since it is larger than the sum of its proper divisors (9264535977).

20826670311 is a wasteful number, since it uses less digits than its factorization.

20826670311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633702 (or 633699 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 20826670311 in words is "twenty billion, eight hundred twenty-six million, six hundred seventy thousand, three hundred eleven".