11400663251 has 8 divisors (see below), whose sum is σ = 11969818320. Its totient is φ = 10843243488.

The previous prime is 11400663203. The next prime is 11400663257. The reversal of 11400663251 is 15236600411.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11400663251 - 2⁶ = 11400663187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11400663257) 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, 2931836 + ... + 2935721.

It is an arithmetic number, because the mean of its divisors is an integer number (1496227290).

Almost surely, 2^11400663251 is an apocalyptic number.

11400663251 is a deficient number, since it is larger than the sum of its proper divisors (569155069).

11400663251 is an equidigital number, since it uses as much as digits as its factorization.

11400663251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5867653.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 11400663251 in words is "eleven billion, four hundred million, six hundred sixty-three thousand, two hundred fifty-one".