12640045034 has 8 divisors (see below), whose sum is σ = 19137264768. Its totient is φ = 6260956780.

The previous prime is 12640045031. The next prime is 12640045069. The reversal of 12640045034 is 43054004621.

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

It is a super-2 number, since 2×12640045034² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12640044988 and 12640045006.

It is not an unprimeable number, because it can be changed into a prime (12640045031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29532602 + ... + 29533029.

It is an arithmetic number, because the mean of its divisors is an integer number (2392158096).

Almost surely, 2^12640045034 is an apocalyptic number.

12640045034 is a deficient number, since it is larger than the sum of its proper divisors (6497219734).

12640045034 is a wasteful number, since it uses less digits than its factorization.

12640045034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59065740.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 12640045034 its reverse (43054004621), we get a palindrome (55694049655).

The spelling of 12640045034 in words is "twelve billion, six hundred forty million, forty-five thousand, thirty-four".