11386400257 has 4 divisors (see below), whose sum is σ = 11396724480. Its totient is φ = 11376076036.

The previous prime is 11386400219. The next prime is 11386400269. The reversal of 11386400257 is 75200468311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75200468311 = 35837 ⋅2098403.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11386400257 is a prime.

It is a super-2 number, since 2×11386400257² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11386440257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5160457 + ... + 5162662.

It is an arithmetic number, because the mean of its divisors is an integer number (2849181120).

Almost surely, 2^11386400257 is an apocalyptic number.

It is an amenable number.

11386400257 is a deficient number, since it is larger than the sum of its proper divisors (10324223).

11386400257 is a wasteful number, since it uses less digits than its factorization.

11386400257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10324222.

The product of its (nonzero) digits is 40320, while the sum is 37.

Adding to 11386400257 its reverse (75200468311), we get a palindrome (86586868568).

The spelling of 11386400257 in words is "eleven billion, three hundred eighty-six million, four hundred thousand, two hundred fifty-seven".