109438711461 has 12 divisors (see below), whose sum is σ = 158081659788. Its totient is φ = 72957515904.

The previous prime is 109438711453. The next prime is 109438711507. The reversal of 109438711461 is 164117834901.

109438711461 is a `hidden beast` number, since 1 + 0 + 9 + 438 + 71 + 146 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 104645780100 + 4792931361 = 323490^2 + 69231^2 .

It is not a de Polignac number, because 109438711461 - 2³ = 109438711453 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 (109438711061) 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, 404301 + ... + 618333.

It is an arithmetic number, because the mean of its divisors is an integer number (13173471649).

Almost surely, 2^109438711461 is an apocalyptic number.

It is an amenable number.

109438711461 is a deficient number, since it is larger than the sum of its proper divisors (48642948327).

109438711461 is a wasteful number, since it uses less digits than its factorization.

109438711461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270852 (or 270849 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 109438711461 in words is "one hundred nine billion, four hundred thirty-eight million, seven hundred eleven thousand, four hundred sixty-one".