26105193785 has 16 divisors (see below), whose sum is σ = 34901183232. Its totient is φ = 18581644800.

The previous prime is 26105193767. The next prime is 26105193787. The reversal of 26105193785 is 58739150162.

It is not a de Polignac number, because 26105193785 - 2¹⁰ = 26105192761 is a prime.

It is a super-2 number, since 2×26105193785² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26105193787) 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, 5046776 + ... + 5051945.

It is an arithmetic number, because the mean of its divisors is an integer number (2181323952).

Almost surely, 2^26105193785 is an apocalyptic number.

It is an amenable number.

26105193785 is a deficient number, since it is larger than the sum of its proper divisors (8795989447).

26105193785 is a wasteful number, since it uses less digits than its factorization.

26105193785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10098784.

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 26105193785 in words is "twenty-six billion, one hundred five million, one hundred ninety-three thousand, seven hundred eighty-five".