12277172280 has 64 divisors (see below), whose sum is σ = 37526470560. Its totient is φ = 3212139008.

The previous prime is 12277172273. The next prime is 12277172291. The reversal of 12277172280 is 8227177221.

12277172280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 958827 + ... + 971546.

Almost surely, 2^12277172280 is an apocalyptic number.

12277172280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12277172280 is an abundant number, since it is smaller than the sum of its proper divisors (25249298280).

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

12277172280 is a wasteful number, since it uses less digits than its factorization.

12277172280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930440 (or 1930436 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 39.

The spelling of 12277172280 in words is "twelve billion, two hundred seventy-seven million, one hundred seventy-two thousand, two hundred eighty".