12390057284 has 24 divisors (see below), whose sum is σ = 23776320288. Its totient is φ = 5602659840.

The previous prime is 12390057271. The next prime is 12390057293. The reversal of 12390057284 is 48275009321.

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, 721022 + ... + 738005.

It is an arithmetic number, because the mean of its divisors is an integer number (990680012).

Almost surely, 2^12390057284 is an apocalyptic number.

It is an amenable number.

12390057284 is a deficient number, since it is larger than the sum of its proper divisors (11386263004).

12390057284 is a wasteful number, since it uses less digits than its factorization.

12390057284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459235 (or 1459233 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 12390057284 in words is "twelve billion, three hundred ninety million, fifty-seven thousand, two hundred eighty-four".