11775697061 has 4 divisors (see below), whose sum is σ = 11824968000. Its totient is φ = 11726426124.

The previous prime is 11775697057. The next prime is 11775697079. The reversal of 11775697061 is 16079657711.

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 not a de Polignac number, because 11775697061 - 2² = 11775697057 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 (11775697961) 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, 24635111 + ... + 24635588.

It is an arithmetic number, because the mean of its divisors is an integer number (2956242000).

Almost surely, 2^11775697061 is an apocalyptic number.

It is an amenable number.

11775697061 is a deficient number, since it is larger than the sum of its proper divisors (49270939).

11775697061 is an equidigital number, since it uses as much as digits as its factorization.

11775697061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49270938.

The product of its (nonzero) digits is 555660, while the sum is 50.

The spelling of 11775697061 in words is "eleven billion, seven hundred seventy-five million, six hundred ninety-seven thousand, sixty-one".