26300660997 has 48 divisors (see below), whose sum is σ = 39494609088. Its totient is φ = 15548682240.

The previous prime is 26300660987. The next prime is 26300660999. The reversal of 26300660997 is 79906600362.

It is not a de Polignac number, because 26300660997 - 2⁶ = 26300660933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26300660999) 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 47 ways as a sum of consecutive naturals, for example, 1319973 + ... + 1339749.

It is an arithmetic number, because the mean of its divisors is an integer number (822804356).

Almost surely, 2^26300660997 is an apocalyptic number.

It is an amenable number.

26300660997 is a deficient number, since it is larger than the sum of its proper divisors (13193948091).

26300660997 is a wasteful number, since it uses less digits than its factorization.

26300660997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19910 (or 19897 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 48.

The spelling of 26300660997 in words is "twenty-six billion, three hundred million, six hundred sixty thousand, nine hundred ninety-seven".