11856591701 has 8 divisors (see below), whose sum is σ = 12393186624. Its totient is φ = 11321754400.

The previous prime is 11856591671. The next prime is 11856591727. The reversal of 11856591701 is 10719565811.

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

It is a cyclic number.

It is not a de Polignac number, because 11856591701 - 2²² = 11852397397 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 (11856591751) 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, 425600 + ... + 452601.

It is an arithmetic number, because the mean of its divisors is an integer number (1549148328).

Almost surely, 2^11856591701 is an apocalyptic number.

It is an amenable number.

11856591701 is a deficient number, since it is larger than the sum of its proper divisors (536594923).

11856591701 is an equidigital number, since it uses as much as digits as its factorization.

11856591701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878811.

The product of its (nonzero) digits is 75600, while the sum is 44.

The spelling of 11856591701 in words is "eleven billion, eight hundred fifty-six million, five hundred ninety-one thousand, seven hundred one".