26001919442609 has 16 divisors (see below), whose sum is σ = 29085881670144. Its totient is φ = 23044841030400.

The previous prime is 26001919442539. The next prime is 26001919442633. The reversal of 26001919442609 is 90624491910062.

It is a cyclic number.

It is not a de Polignac number, because 26001919442609 - 2³² = 25997624475313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26001919444609) 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, 171388769 + ... + 171540414.

It is an arithmetic number, because the mean of its divisors is an integer number (1817867604384).

Almost surely, 2^{26001919442609} is an apocalyptic number.

It is an amenable number.

26001919442609 is a deficient number, since it is larger than the sum of its proper divisors (3083962227535).

26001919442609 is a wasteful number, since it uses less digits than its factorization.

26001919442609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342929368.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The spelling of 26001919442609 in words is "twenty-six trillion, one billion, nine hundred nineteen million, four hundred forty-two thousand, six hundred nine".