26109609057 has 24 divisors (see below), whose sum is σ = 43129492224. Its totient is φ = 14910113664.

The previous prime is 26109609047. The next prime is 26109609109. The reversal of 26109609057 is 75090690162.

It is a happy number.

26109609057 is a `hidden beast` number, since 26 + 10 + 9 + 609 + 0 + 5 + 7 = 666.

It is not a de Polignac number, because 26109609057 - 2⁴ = 26109609041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26109609047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35593 + ... + 231270.

It is an arithmetic number, because the mean of its divisors is an integer number (1797062176).

Almost surely, 2^26109609057 is an apocalyptic number.

It is an amenable number.

26109609057 is a deficient number, since it is larger than the sum of its proper divisors (17019883167).

26109609057 is a wasteful number, since it uses less digits than its factorization.

26109609057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268429 (or 268426 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 26109609057 in words is "twenty-six billion, one hundred nine million, six hundred nine thousand, fifty-seven".