12457117724 has 6 divisors (see below), whose sum is σ = 21799956024. Its totient is φ = 6228558860.

The previous prime is 12457117723. The next prime is 12457117789. The reversal of 12457117724 is 42771175421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12457117723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1557139712 + ... + 1557139719.

It is an arithmetic number, because the mean of its divisors is an integer number (3633326004).

Almost surely, 2^12457117724 is an apocalyptic number.

It is an amenable number.

12457117724 is a deficient number, since it is larger than the sum of its proper divisors (9342838300).

12457117724 is a wasteful number, since it uses less digits than its factorization.

12457117724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3114279435 (or 3114279433 counting only the distinct ones).

The product of its digits is 109760, while the sum is 41.

The spelling of 12457117724 in words is "twelve billion, four hundred fifty-seven million, one hundred seventeen thousand, seven hundred twenty-four".