12280527140 has 48 divisors (see below), whose sum is σ = 29490448512. Its totient is φ = 4208011776.

The previous prime is 12280527131. The next prime is 12280527179. The reversal of 12280527140 is 4172508221.

It is a super-2 number, since 2×12280527140² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12280527097 and 12280527106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224099 + ... + 273461.

It is an arithmetic number, because the mean of its divisors is an integer number (614384344).

Almost surely, 2^12280527140 is an apocalyptic number.

12280527140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12280527140 is an abundant number, since it is smaller than the sum of its proper divisors (17209921372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12280527140 is a wasteful number, since it uses less digits than its factorization.

12280527140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51156 (or 51154 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The spelling of 12280527140 in words is "twelve billion, two hundred eighty million, five hundred twenty-seven thousand, one hundred forty".