2798319304878 has 32 divisors (see below), whose sum is σ = 5926569513984. Its totient is φ = 877797892992.

The previous prime is 2798319304853. The next prime is 2798319304889. The reversal of 2798319304878 is 8784039138972.

It is a super-2 number, since 2×2798319304878² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 810000 + ... + 2500547.

It is an arithmetic number, because the mean of its divisors is an integer number (185205297312).

Almost surely, 2^{2798319304878} is an apocalyptic number.

2798319304878 is an abundant number, since it is smaller than the sum of its proper divisors (3128250209106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2798319304878 is a wasteful number, since it uses less digits than its factorization.

2798319304878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3318856.

The product of its (nonzero) digits is 146313216, while the sum is 69.

The spelling of 2798319304878 in words is "two trillion, seven hundred ninety-eight billion, three hundred nineteen million, three hundred four thousand, eight hundred seventy-eight".