11927845709 has 8 divisors (see below), whose sum is σ = 12851556480. Its totient is φ = 11005018416.

The previous prime is 11927845663. The next prime is 11927845739. The reversal of 11927845709 is 90754872911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11927845709 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 (11927845739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192689 + ... + 246950.

It is an arithmetic number, because the mean of its divisors is an integer number (1606444560).

Almost surely, 2^11927845709 is an apocalyptic number.

It is an amenable number.

11927845709 is a deficient number, since it is larger than the sum of its proper divisors (923710771).

11927845709 is a wasteful number, since it uses less digits than its factorization.

11927845709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441739.

The product of its (nonzero) digits is 1270080, while the sum is 53.

The spelling of 11927845709 in words is "eleven billion, nine hundred twenty-seven million, eight hundred forty-five thousand, seven hundred nine".