11878722472 has 16 divisors (see below), whose sum is σ = 22746490560. Its totient is φ = 5812991664.

The previous prime is 11878722431. The next prime is 11878722491. The reversal of 11878722472 is 27422787811.

It is a super-2 number, since 2×11878722472² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15795798 + ... + 15796549.

It is an arithmetic number, because the mean of its divisors is an integer number (1421655660).

Almost surely, 2^11878722472 is an apocalyptic number.

It is an amenable number.

11878722472 is a deficient number, since it is larger than the sum of its proper divisors (10867768088).

11878722472 is a wasteful number, since it uses less digits than its factorization.

11878722472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31592400 (or 31592396 counting only the distinct ones).

The product of its digits is 702464, while the sum is 49.

The spelling of 11878722472 in words is "eleven billion, eight hundred seventy-eight million, seven hundred twenty-two thousand, four hundred seventy-two".