11835237805597 has 4 divisors (see below), whose sum is σ = 11835265781920. Its totient is φ = 11835209829276.

The previous prime is 11835237805571. The next prime is 11835237805639. The reversal of 11835237805597 is 79550873253811.

11835237805597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11835237805597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11835237805697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13343697 + ... + 14202982.

It is an arithmetic number, because the mean of its divisors is an integer number (2958816445480).

Almost surely, 2^{11835237805597} is an apocalyptic number.

It is an amenable number.

11835237805597 is a deficient number, since it is larger than the sum of its proper divisors (27976323).

11835237805597 is an equidigital number, since it uses as much as digits as its factorization.

11835237805597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27976322.

The product of its (nonzero) digits is 63504000, while the sum is 64.

The spelling of 11835237805597 in words is "eleven trillion, eight hundred thirty-five billion, two hundred thirty-seven million, eight hundred five thousand, five hundred ninety-seven".