11990177735 has 4 divisors (see below), whose sum is σ = 14388213288. Its totient is φ = 9592142184.

The previous prime is 11990177729. The next prime is 11990177789. The reversal of 11990177735 is 53777109911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11990177735 - 2³⁰ = 10916435911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1199017769 + ... + 1199017778.

It is an arithmetic number, because the mean of its divisors is an integer number (3597053322).

Almost surely, 2^11990177735 is an apocalyptic number.

11990177735 is a deficient number, since it is larger than the sum of its proper divisors (2398035553).

11990177735 is an equidigital number, since it uses as much as digits as its factorization.

11990177735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398035552.

The product of its (nonzero) digits is 416745, while the sum is 50.

The spelling of 11990177735 in words is "eleven billion, nine hundred ninety million, one hundred seventy-seven thousand, seven hundred thirty-five".