11859317469 has 24 divisors (see below), whose sum is σ = 17349433920. Its totient is φ = 7805135232.

The previous prime is 11859317467. The next prime is 11859317473. The reversal of 11859317469 is 96471395811.

11859317469 is a `hidden beast` number, since 1 + 1 + 8 + 593 + 1 + 7 + 46 + 9 = 666.

It is not a de Polignac number, because 11859317469 - 2¹ = 11859317467 is a prime.

It is a super-2 number, since 2×11859317469² (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 (11859317467) 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, 1147477 + ... + 1157765.

It is an arithmetic number, because the mean of its divisors is an integer number (722893080).

Almost surely, 2^11859317469 is an apocalyptic number.

It is an amenable number.

11859317469 is a deficient number, since it is larger than the sum of its proper divisors (5490116451).

11859317469 is a wasteful number, since it uses less digits than its factorization.

11859317469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11921 (or 11918 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The spelling of 11859317469 in words is "eleven billion, eight hundred fifty-nine million, three hundred seventeen thousand, four hundred sixty-nine".