11856494727 has 48 divisors (see below), whose sum is σ = 21433471488. Its totient is φ = 6135704640.

The previous prime is 11856494723. The next prime is 11856494743. The reversal of 11856494727 is 72749465811.

11856494727 is a `hidden beast` number, since 1 + 1 + 8 + 564 + 9 + 4 + 72 + 7 = 666.

It is not a de Polignac number, because 11856494727 - 2² = 11856494723 is a prime.

It is a super-2 number, since 2×11856494727² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11856494723) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 149733 + ... + 214785.

It is an arithmetic number, because the mean of its divisors is an integer number (446530656).

Almost surely, 2^11856494727 is an apocalyptic number.

11856494727 is a deficient number, since it is larger than the sum of its proper divisors (9576976761).

11856494727 is a wasteful number, since it uses less digits than its factorization.

11856494727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65340 (or 65337 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The spelling of 11856494727 in words is "eleven billion, eight hundred fifty-six million, four hundred ninety-four thousand, seven hundred twenty-seven".