2878780878706 has 8 divisors (see below), whose sum is σ = 4318254831024. Its totient is φ = 1439362601700.

The previous prime is 2878780878683. The next prime is 2878780878731. The reversal of 2878780878706 is 6078780878782.

It is a happy number.

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

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, 13789320 + ... + 13996531.

It is an arithmetic number, because the mean of its divisors is an integer number (539781853878).

Almost surely, 2^{2878780878706} is an apocalyptic number.

2878780878706 is a deficient number, since it is larger than the sum of its proper divisors (1439473952318).

2878780878706 is a wasteful number, since it uses less digits than its factorization.

2878780878706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27837656.

The product of its (nonzero) digits is 944111616, while the sum is 76.

Adding to 2878780878706 its sum of digits (76), we get a palindrome (2878780878782).

The spelling of 2878780878706 in words is "two trillion, eight hundred seventy-eight billion, seven hundred eighty million, eight hundred seventy-eight thousand, seven hundred six".