26087871105 has 12 divisors (see below), whose sum is σ = 45218976660. Its totient is φ = 13913531232.

The previous prime is 26087871091. The next prime is 26087871149. The reversal of 26087871105 is 50117878062.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15178486401 + 10909384704 = 123201^2 + 104448^2 .

It is not a de Polignac number, because 26087871105 - 2⁶ = 26087871041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 579730469 = 26087871105 / (2 + 6 + 0 + 8 + 7 + 8 + 7 + 1 + 1 + 0 + 5).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289865190 + ... + 289865279.

It is an arithmetic number, because the mean of its divisors is an integer number (3768248055).

Almost surely, 2^26087871105 is an apocalyptic number.

It is an amenable number.

26087871105 is a deficient number, since it is larger than the sum of its proper divisors (19131105555).

26087871105 is a wasteful number, since it uses less digits than its factorization.

26087871105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579730480 (or 579730477 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 45.

The spelling of 26087871105 in words is "twenty-six billion, eighty-seven million, eight hundred seventy-one thousand, one hundred five".