13603977140 has 96 divisors (see below), whose sum is σ = 32043060000. Its totient is φ = 4816852992.

The previous prime is 13603977131. The next prime is 13603977193. The reversal of 13603977140 is 4177930631.

It can be written as a sum of positive squares in 16 ways, for example, as 3119445904 + 10484531236 = 55852^2 + 102394^2 .

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1117406 + ... + 1129514.

It is an arithmetic number, because the mean of its divisors is an integer number (333781875).

Almost surely, 2^13603977140 is an apocalyptic number.

13603977140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13603977140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16021530000).

13603977140 is an abundant number, since it is smaller than the sum of its proper divisors (18439082860).

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

13603977140 is a wasteful number, since it uses less digits than its factorization.

13603977140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12309 (or 12307 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 41.

The spelling of 13603977140 in words is "thirteen billion, six hundred three million, nine hundred seventy-seven thousand, one hundred forty".