12643451541514 has 8 divisors (see below), whose sum is σ = 18988109814528. Its totient is φ = 6314081603340.

The previous prime is 12643451541509. The next prime is 12643451541551. The reversal of 12643451541514 is 41514515434621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12643451541514² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3822081642 + ... + 3822084949.

It is an arithmetic number, because the mean of its divisors is an integer number (2373513726816).

Almost surely, 2^{12643451541514} is an apocalyptic number.

12643451541514 is a deficient number, since it is larger than the sum of its proper divisors (6344658273014).

12643451541514 is an equidigital number, since it uses as much as digits as its factorization.

12643451541514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7644167420.

The product of its digits is 1152000, while the sum is 46.

The spelling of 12643451541514 in words is "twelve trillion, six hundred forty-three billion, four hundred fifty-one million, five hundred forty-one thousand, five hundred fourteen".