12514254640 has 60 divisors (see below), whose sum is σ = 29537234496. Its totient is φ = 4930848384.

The previous prime is 12514254629. The next prime is 12514254653. The reversal of 12514254640 is 4645241521.

It is a junction number, because it is equal to n+sod(n) for n = 12514254596 and 12514254605.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 341697 + ... + 376543.

Almost surely, 2^12514254640 is an apocalyptic number.

12514254640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12514254640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14768617248).

12514254640 is an abundant number, since it is smaller than the sum of its proper divisors (17022979856).

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

12514254640 is an equidigital number, since it uses as much as digits as its factorization.

12514254640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34994 (or 34921 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 12514254640 in words is "twelve billion, five hundred fourteen million, two hundred fifty-four thousand, six hundred forty".