26361145217 has 16 divisors (see below), whose sum is σ = 30455352000. Its totient is φ = 22550461440.

The previous prime is 26361145199. The next prime is 26361145229. The reversal of 26361145217 is 71254116362.

It is a cyclic number.

It is not a de Polignac number, because 26361145217 - 2³⁴ = 9181276033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26361145277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1195034 + ... + 1216892.

It is an arithmetic number, because the mean of its divisors is an integer number (1903459500).

Almost surely, 2^26361145217 is an apocalyptic number.

It is an amenable number.

26361145217 is a deficient number, since it is larger than the sum of its proper divisors (4094206783).

26361145217 is a wasteful number, since it uses less digits than its factorization.

26361145217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28336.

The product of its digits is 60480, while the sum is 38.

The spelling of 26361145217 in words is "twenty-six billion, three hundred sixty-one million, one hundred forty-five thousand, two hundred seventeen".