26820206630867 has 16 divisors (see below), whose sum is σ = 29246916561408. Its totient is φ = 24445760892960.

The previous prime is 26820206630849. The next prime is 26820206630887. The reversal of 26820206630867 is 76803660202862.

It is a cyclic number.

It is not a de Polignac number, because 26820206630867 - 2¹⁶ = 26820206565331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26820206630827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4623773 + ... + 8661390.

It is an arithmetic number, because the mean of its divisors is an integer number (1827932285088).

Almost surely, 2^{26820206630867} is an apocalyptic number.

26820206630867 is a deficient number, since it is larger than the sum of its proper divisors (2426709930541).

26820206630867 is a wasteful number, since it uses less digits than its factorization.

26820206630867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13287130.

The product of its (nonzero) digits is 13934592, while the sum is 56.

The spelling of 26820206630867 in words is "twenty-six trillion, eight hundred twenty billion, two hundred six million, six hundred thirty thousand, eight hundred sixty-seven".