11765131797 has 32 divisors (see below), whose sum is σ = 16839889920. Its totient is φ = 7284504960.

The previous prime is 11765131783. The next prime is 11765131799. The reversal of 11765131797 is 79713156711.

It is a happy number.

It is not a de Polignac number, because 11765131797 - 2⁶ = 11765131733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11765131799) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 686422 + ... + 703352.

It is an arithmetic number, because the mean of its divisors is an integer number (526246560).

Almost surely, 2^11765131797 is an apocalyptic number.

It is an amenable number.

11765131797 is a deficient number, since it is larger than the sum of its proper divisors (5074758123).

11765131797 is a wasteful number, since it uses less digits than its factorization.

11765131797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17193.

The product of its digits is 277830, while the sum is 48.

The spelling of 11765131797 in words is "eleven billion, seven hundred sixty-five million, one hundred thirty-one thousand, seven hundred ninety-seven".