12280373918 has 16 divisors (see below), whose sum is σ = 18482478000. Its totient is φ = 6119572032.

The previous prime is 12280373887. The next prime is 12280373951. The reversal of 12280373918 is 81937308221.

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, 1214588 + ... + 1224656.

It is an arithmetic number, because the mean of its divisors is an integer number (1155154875).

Almost surely, 2^12280373918 is an apocalyptic number.

12280373918 is a deficient number, since it is larger than the sum of its proper divisors (6202104082).

12280373918 is a wasteful number, since it uses less digits than its factorization.

12280373918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12059.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 12280373918 in words is "twelve billion, two hundred eighty million, three hundred seventy-three thousand, nine hundred eighteen".