11418421063969 has 2 divisors, whose sum is σ = 11418421063970. Its totient is φ = 11418421063968.

The previous prime is 11418421063909. The next prime is 11418421064003. The reversal of 11418421063969 is 96936012481411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8990162689600 + 2428258374369 = 2998360^2 + 1558287^2 .

It is a cyclic number.

It is not a de Polignac number, because 11418421063969 - 2¹³ = 11418421055777 is a prime.

It is a super-2 number, since 2×11418421063969² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11418421063909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5709210531984 + 5709210531985.

It is an arithmetic number, because the mean of its divisors is an integer number (5709210531985).

Almost surely, 2^{11418421063969} is an apocalyptic number.

It is an amenable number.

11418421063969 is a deficient number, since it is larger than the sum of its proper divisors (1).

11418421063969 is an equidigital number, since it uses as much as digits as its factorization.

11418421063969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2239488, while the sum is 55.

The spelling of 11418421063969 in words is "eleven trillion, four hundred eighteen billion, four hundred twenty-one million, sixty-three thousand, nine hundred sixty-nine".