11690721759 has 16 divisors (see below), whose sum is σ = 15750588672. Its totient is φ = 7712446848.

The previous prime is 11690721733. The next prime is 11690721787. The reversal of 11690721759 is 95712709611.

It is not a de Polignac number, because 11690721759 - 2⁹ = 11690721247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11690721799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427687 + ... + 454199.

It is an arithmetic number, because the mean of its divisors is an integer number (984411792).

Almost surely, 2^11690721759 is an apocalyptic number.

11690721759 is a deficient number, since it is larger than the sum of its proper divisors (4059866913).

11690721759 is a wasteful number, since it uses less digits than its factorization.

11690721759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28046.

The product of its (nonzero) digits is 238140, while the sum is 48.

The spelling of 11690721759 in words is "eleven billion, six hundred ninety million, seven hundred twenty-one thousand, seven hundred fifty-nine".