4517876878436 has 12 divisors (see below), whose sum is σ = 7906585374828. Its totient is φ = 2258852485632.

The previous prime is 4517876878409. The next prime is 4517876878441. The reversal of 4517876878436 is 6348786787154.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1847136500836 + 2670740377600 = 1359094^2 + 1634240^2 .

It is a super-2 number, since 2×4517876878436² (a number of 26 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, 21370061 + ... + 21580436.

It is an arithmetic number, because the mean of its divisors is an integer number (658882114569).

Almost surely, 2^{4517876878436} is an apocalyptic number.

It is an amenable number.

4517876878436 is a deficient number, since it is larger than the sum of its proper divisors (3388708496392).

4517876878436 is a wasteful number, since it uses less digits than its factorization.

4517876878436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42976798 (or 42976796 counting only the distinct ones).

The product of its digits is 1517322240, while the sum is 74.

The spelling of 4517876878436 in words is "four trillion, five hundred seventeen billion, eight hundred seventy-six million, eight hundred seventy-eight thousand, four hundred thirty-six".