26424622402657 has 4 divisors (see below), whose sum is σ = 26424635955120. Its totient is φ = 26424608850196.

The previous prime is 26424622402639. The next prime is 26424622402733. The reversal of 26424622402657 is 75620422642462.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26424622402657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26424622402627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3234463 + ... + 7956820.

It is an arithmetic number, because the mean of its divisors is an integer number (6606158988780).

Almost surely, 2^{26424622402657} is an apocalyptic number.

It is an amenable number.

26424622402657 is a deficient number, since it is larger than the sum of its proper divisors (13552463).

26424622402657 is a wasteful number, since it uses less digits than its factorization.

26424622402657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13552462.

The product of its (nonzero) digits is 15482880, while the sum is 52.

The spelling of 26424622402657 in words is "twenty-six trillion, four hundred twenty-four billion, six hundred twenty-two million, four hundred two thousand, six hundred fifty-seven".