13750118261 has 12 divisors (see below), whose sum is σ = 15634934700. Its totient is φ = 12069066240.

The previous prime is 13750118243. The next prime is 13750118269. The reversal of 13750118261 is 16281105731.

It can be written as a sum of positive squares in 2 ways, for example, as 11349706225 + 2400412036 = 106535^2 + 48994^2 .

It is not a de Polignac number, because 13750118261 - 2⁶ = 13750118197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13750118269) 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, 1955756 + ... + 1962773.

It is an arithmetic number, because the mean of its divisors is an integer number (1302911225).

Almost surely, 2^13750118261 is an apocalyptic number.

13750118261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13750118261 is a deficient number, since it is larger than the sum of its proper divisors (1884816439).

13750118261 is a wasteful number, since it uses less digits than its factorization.

13750118261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3918580 (or 3918569 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 35.

The spelling of 13750118261 in words is "thirteen billion, seven hundred fifty million, one hundred eighteen thousand, two hundred sixty-one".