26791149816 has 40 divisors (see below), whose sum is σ = 75040027920. Its totient is φ = 8930383056.

The previous prime is 26791149767. The next prime is 26791149817. The reversal of 26791149816 is 61894119762.

26791149816 is a `hidden beast` number, since 2 + 67 + 91 + 1 + 498 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26791149817) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 20671536 + ... + 20672831.

It is an arithmetic number, because the mean of its divisors is an integer number (1876000698).

Almost surely, 2^26791149816 is an apocalyptic number.

It is an amenable number.

26791149816 is an abundant number, since it is smaller than the sum of its proper divisors (48248878104).

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

26791149816 is a wasteful number, since it uses less digits than its factorization.

26791149816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41344385 (or 41344372 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The spelling of 26791149816 in words is "twenty-six billion, seven hundred ninety-one million, one hundred forty-nine thousand, eight hundred sixteen".