12420378514 has 4 divisors (see below), whose sum is σ = 18630567774. Its totient is φ = 6210189256.

The previous prime is 12420378493. The next prime is 12420378533. The reversal of 12420378514 is 41587302421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12413747889 + 6630625 = 111417^2 + 2575^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3105094627 + ... + 3105094630.

Almost surely, 2^12420378514 is an apocalyptic number.

12420378514 is a deficient number, since it is larger than the sum of its proper divisors (6210189260).

12420378514 is an equidigital number, since it uses as much as digits as its factorization.

12420378514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6210189259.

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 12420378514 in words is "twelve billion, four hundred twenty million, three hundred seventy-eight thousand, five hundred fourteen".