26134311861 has 48 divisors (see below), whose sum is σ = 44715299200. Its totient is φ = 14396828544.

The previous prime is 26134311839. The next prime is 26134311887. The reversal of 26134311861 is 16811343162.

26134311861 is a `hidden beast` number, since 2 + 613 + 4 + 31 + 1 + 8 + 6 + 1 = 666.

It is not a de Polignac number, because 26134311861 - 2¹³ = 26134303669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26134312861) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 202650 + ... + 305508.

Almost surely, 2^26134311861 is an apocalyptic number.

26134311861 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

26134311861 is a deficient number, since it is larger than the sum of its proper divisors (18580987339).

26134311861 is a wasteful number, since it uses less digits than its factorization.

26134311861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103018 (or 103015 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The spelling of 26134311861 in words is "twenty-six billion, one hundred thirty-four million, three hundred eleven thousand, eight hundred sixty-one".