13720826860 has 48 divisors (see below), whose sum is σ = 31047571296. Its totient is φ = 5063311872.

The previous prime is 13720826857. The next prime is 13720826863. The reversal of 13720826860 is 6862802731.

It is an interprime number because it is at equal distance from previous prime (13720826857) and next prime (13720826863).

It is a super-2 number, since 2×13720826860² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13720826863) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 481984 + ... + 509656.

It is an arithmetic number, because the mean of its divisors is an integer number (646824402).

Almost surely, 2^13720826860 is an apocalyptic number.

13720826860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13720826860 is an abundant number, since it is smaller than the sum of its proper divisors (17326744436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13720826860 is a wasteful number, since it uses less digits than its factorization.

13720826860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29602 (or 29600 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 13720826860 in words is "thirteen billion, seven hundred twenty million, eight hundred twenty-six thousand, eight hundred sixty".