26305890057 has 24 divisors (see below), whose sum is σ = 38415386880. Its totient is φ = 17344720800.

The previous prime is 26305890047. The next prime is 26305890101. The reversal of 26305890057 is 75009850362.

It is a happy number.

26305890057 is a `hidden beast` number, since 2 + 63 + 0 + 589 + 0 + 0 + 5 + 7 = 666.

It is not a de Polignac number, because 26305890057 - 2⁴ = 26305890041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26305889994 and 26305890021.

It is not an unprimeable number, because it can be changed into a prime (26305890047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 845544 + ... + 876102.

It is an arithmetic number, because the mean of its divisors is an integer number (1600641120).

Almost surely, 2^26305890057 is an apocalyptic number.

It is an amenable number.

26305890057 is a deficient number, since it is larger than the sum of its proper divisors (12109496823).

26305890057 is a wasteful number, since it uses less digits than its factorization.

26305890057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31613 (or 31610 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 26305890057 in words is "twenty-six billion, three hundred five million, eight hundred ninety thousand, fifty-seven".