1224672439864 has 16 divisors (see below), whose sum is σ = 2318554620720. Its totient is φ = 606391207680.

The previous prime is 1224672439853. The next prime is 1224672439867. The reversal of 1224672439864 is 4689342764221.

It is a junction number, because it is equal to n+sod(n) for n = 1224672439799 and 1224672439808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224672439867) 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, 743125657 + ... + 743127304.

It is an arithmetic number, because the mean of its divisors is an integer number (144909663795).

Almost surely, 2^{1224672439864} is an apocalyptic number.

It is an amenable number.

1224672439864 is a deficient number, since it is larger than the sum of its proper divisors (1093882180856).

1224672439864 is a wasteful number, since it uses less digits than its factorization.

1224672439864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486253070 (or 1486253066 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 58.

The spelling of 1224672439864 in words is "one trillion, two hundred twenty-four billion, six hundred seventy-two million, four hundred thirty-nine thousand, eight hundred sixty-four".