13206888740 has 24 divisors (see below), whose sum is σ = 28257760440. Its totient is φ = 5183080448.

The previous prime is 13206888727. The next prime is 13206888757. The reversal of 13206888740 is 4788860231.

It can be written as a sum of positive squares in 4 ways, for example, as 6653338624 + 6553550116 = 81568^2 + 80954^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6228605 + ... + 6230724.

It is an arithmetic number, because the mean of its divisors is an integer number (1177406685).

Almost surely, 2^13206888740 is an apocalyptic number.

13206888740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13206888740 is an abundant number, since it is smaller than the sum of its proper divisors (15050871700).

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

13206888740 is a wasteful number, since it uses less digits than its factorization.

13206888740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12459391 (or 12459389 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 13206888740 in words is "thirteen billion, two hundred six million, eight hundred eighty-eight thousand, seven hundred forty".