2878313825489 has 8 divisors (see below), whose sum is σ = 2925527147880. Its totient is φ = 2831101401600.

The previous prime is 2878313825467. The next prime is 2878313825501. The reversal of 2878313825489 is 9845283138782.

2878313825489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 142267015489 + 2736046810000 = 377183^2 + 1654100^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2878313825489 is a prime.

It is a super-2 number, since 2×2878313825489² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2778313825489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10077947 + ... + 10359615.

It is an arithmetic number, because the mean of its divisors is an integer number (365690893485).

Almost surely, 2^{2878313825489} is an apocalyptic number.

It is an amenable number.

2878313825489 is a deficient number, since it is larger than the sum of its proper divisors (47213322391).

2878313825489 is a wasteful number, since it uses less digits than its factorization.

2878313825489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449251.

The product of its digits is 185794560, while the sum is 68.

The spelling of 2878313825489 in words is "two trillion, eight hundred seventy-eight billion, three hundred thirteen million, eight hundred twenty-five thousand, four hundred eighty-nine".