11855473372 has 24 divisors (see below), whose sum is σ = 21667032576. Its totient is φ = 5665319088.

The previous prime is 11855473361. The next prime is 11855473391. The reversal of 11855473372 is 27337455811.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59833 + ... + 165199.

It is an arithmetic number, because the mean of its divisors is an integer number (902793024).

Almost surely, 2^11855473372 is an apocalyptic number.

It is an amenable number.

11855473372 is a deficient number, since it is larger than the sum of its proper divisors (9811559204).

11855473372 is a wasteful number, since it uses less digits than its factorization.

11855473372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106617 (or 106615 counting only the distinct ones).

The product of its digits is 705600, while the sum is 46.

The spelling of 11855473372 in words is "eleven billion, eight hundred fifty-five million, four hundred seventy-three thousand, three hundred seventy-two".