11514638258 has 18 divisors (see below), whose sum is σ = 18061036959. Its totient is φ = 5505331612.

The previous prime is 11514638257. The next prime is 11514638263. The reversal of 11514638258 is 85283641511.

It can be written as a sum of positive squares in only one way, i.e., 5757319129 + 5757319129 = 75877^2 + 75877^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=75877.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11514638257) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3488693 + ... + 3491991.

Almost surely, 2^11514638258 is an apocalyptic number.

11514638258 is a deficient number, since it is larger than the sum of its proper divisors (6546398701).

11514638258 is an frugal number, since it uses more digits than its factorization.

11514638258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6646 (or 3324 counting only the distinct ones).

The product of its digits is 230400, while the sum is 44.

The spelling of 11514638258 in words is "eleven billion, five hundred fourteen million, six hundred thirty-eight thousand, two hundred fifty-eight".