26379591858 has 24 divisors (see below), whose sum is σ = 57161851500. Its totient is φ = 8792263584.

The previous prime is 26379591857. The next prime is 26379591859. The reversal of 26379591858 is 85819597362.

26379591858 is a `hidden beast` number, since 2 + 6 + 37 + 9 + 591 + 8 + 5 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (26379591857) and next prime (26379591859).

It can be written as a sum of positive squares in 2 ways, for example, as 26371486449 + 8105409 = 162393^2 + 2847^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26379591795 and 26379591804.

It is not an unprimeable number, because it can be changed into a prime (26379591857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108468 + ... + 254016.

Almost surely, 2^26379591858 is an apocalyptic number.

26379591858 is an abundant number, since it is smaller than the sum of its proper divisors (30782259642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26379591858 is a wasteful number, since it uses less digits than its factorization.

26379591858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155626 (or 155623 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 63.

The spelling of 26379591858 in words is "twenty-six billion, three hundred seventy-nine million, five hundred ninety-one thousand, eight hundred fifty-eight".