11946390400247 has 2 divisors, whose sum is σ = 11946390400248. Its totient is φ = 11946390400246.

The previous prime is 11946390400237. The next prime is 11946390400313. The reversal of 11946390400247 is 74200409364911.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11946390400247 is a prime.

It is a super-2 number, since 2×11946390400247² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11946390400195 and 11946390400204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11946390400237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5973195200123 + 5973195200124.

It is an arithmetic number, because the mean of its divisors is an integer number (5973195200124).

Almost surely, 2^{11946390400247} is an apocalyptic number.

11946390400247 is a deficient number, since it is larger than the sum of its proper divisors (1).

11946390400247 is an equidigital number, since it uses as much as digits as its factorization.

11946390400247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 11946390400247 in words is "eleven trillion, nine hundred forty-six billion, three hundred ninety million, four hundred thousand, two hundred forty-seven".