11827660617 has 24 divisors (see below), whose sum is σ = 17376444800. Its totient is φ = 7751191968.

The previous prime is 11827660583. The next prime is 11827660687. The reversal of 11827660617 is 71606672811.

11827660617 is a `hidden beast` number, since 1 + 1 + 8 + 27 + 6 + 6 + 0 + 617 = 666.

It is not a de Polignac number, because 11827660617 - 2¹² = 11827656521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11827660687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126498 + ... + 199140.

Almost surely, 2^11827660617 is an apocalyptic number.

It is an amenable number.

11827660617 is a deficient number, since it is larger than the sum of its proper divisors (5548784183).

11827660617 is a wasteful number, since it uses less digits than its factorization.

11827660617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72957 (or 72954 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 11827660617 in words is "eleven billion, eight hundred twenty-seven million, six hundred sixty thousand, six hundred seventeen".