26072560899 has 48 divisors (see below), whose sum is σ = 47154991104. Its totient is φ = 13485974400.

The previous prime is 26072560889. The next prime is 26072560903. The reversal of 26072560899 is 99806527062.

26072560899 is a `hidden beast` number, since 2 + 6 + 0 + 7 + 25 + 608 + 9 + 9 = 666.

It is a Cunningham number, because it is equal to 161470²-1.

It is not a de Polignac number, because 26072560899 - 2⁷ = 26072560771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26072560889) 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, 80734 + ... + 242204.

It is an arithmetic number, because the mean of its divisors is an integer number (982395648).

Almost surely, 2^26072560899 is an apocalyptic number.

26072560899 is a deficient number, since it is larger than the sum of its proper divisors (21082430205).

26072560899 is a wasteful number, since it uses less digits than its factorization.

26072560899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161728 (or 161725 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 26072560899 in words is "twenty-six billion, seventy-two million, five hundred sixty thousand, eight hundred ninety-nine".