11400000081 has 8 divisors (see below), whose sum is σ = 15213210624. Its totient is φ = 7593394800.

The previous prime is 11400000049. The next prime is 11400000151. The reversal of 11400000081 is 18000000411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11400000081 - 2⁵ = 11400000049 is a prime.

It is a super-2 number, since 2×11400000081² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11400000081.

It is not an unprimeable number, because it can be changed into a prime (11400000011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1647286 + ... + 1654191.

It is an arithmetic number, because the mean of its divisors is an integer number (1901651328).

Almost surely, 2^11400000081 is an apocalyptic number.

It is an amenable number.

11400000081 is a deficient number, since it is larger than the sum of its proper divisors (3813210543).

11400000081 is a wasteful number, since it uses less digits than its factorization.

11400000081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3302631.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11400000081 its reverse (18000000411), we get a palindrome (29400000492).

The spelling of 11400000081 in words is "eleven billion, four hundred million, eighty-one", and thus it is an aban number.