24664506121391 has 2 divisors, whose sum is σ = 24664506121392. Its totient is φ = 24664506121390.

The previous prime is 24664506121361. The next prime is 24664506121417. The reversal of 24664506121391 is 19312160546642.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 24664506121391 - 2¹⁰ = 24664506120367 is a prime.

It is a super-2 number, since 2×24664506121391² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24664506121361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12332253060695 + 12332253060696.

It is an arithmetic number, because the mean of its divisors is an integer number (12332253060696).

Almost surely, 2^{24664506121391} is an apocalyptic number.

24664506121391 is a deficient number, since it is larger than the sum of its proper divisors (1).

24664506121391 is an equidigital number, since it uses as much as digits as its factorization.

24664506121391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 24664506121391 in words is "twenty-four trillion, six hundred sixty-four billion, five hundred six million, one hundred twenty-one thousand, three hundred ninety-one".