12457284452 has 6 divisors (see below), whose sum is σ = 21800247798. Its totient is φ = 6228642224.

The previous prime is 12457284451. The next prime is 12457284479. The reversal of 12457284452 is 25448275421.

It can be written as a sum of positive squares in only one way, i.e., 11241088576 + 1216195876 = 106024^2 + 34874^2 .

It is not an unprimeable number, because it can be changed into a prime (12457284451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1557160553 + ... + 1557160560.

It is an arithmetic number, because the mean of its divisors is an integer number (3633374633).

Almost surely, 2^12457284452 is an apocalyptic number.

It is an amenable number.

12457284452 is a deficient number, since it is larger than the sum of its proper divisors (9342963346).

12457284452 is a wasteful number, since it uses less digits than its factorization.

12457284452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3114321117 (or 3114321115 counting only the distinct ones).

The product of its digits is 716800, while the sum is 44.

The spelling of 12457284452 in words is "twelve billion, four hundred fifty-seven million, two hundred eighty-four thousand, four hundred fifty-two".