11453666447 has 2 divisors, whose sum is σ = 11453666448. Its totient is φ = 11453666446.

The previous prime is 11453666437. The next prime is 11453666489. The reversal of 11453666447 is 74466635411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11453666447 - 2⁶ = 11453666383 is a prime.

It is a super-3 number, since 3×11453666447³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11453666417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5726833223 + 5726833224.

It is an arithmetic number, because the mean of its divisors is an integer number (5726833224).

Almost surely, 2^11453666447 is an apocalyptic number.

11453666447 is a deficient number, since it is larger than the sum of its proper divisors (1).

11453666447 is an equidigital number, since it uses as much as digits as its factorization.

11453666447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 47.

The spelling of 11453666447 in words is "eleven billion, four hundred fifty-three million, six hundred sixty-six thousand, four hundred forty-seven".