878223882497 has 8 divisors (see below), whose sum is σ = 956406303720. Its totient is φ = 801559566720.

The previous prime is 878223882427. The next prime is 878223882499. The reversal of 878223882497 is 794288322878.

It is a Cunningham number, because it is equal to 937136²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 129914110096 + 748309772401 = 360436^2 + 865049^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 878223882497 - 2⁸ = 878223882241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (878223882499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379525154 + ... + 379527467.

It is an arithmetic number, because the mean of its divisors is an integer number (119550787965).

Almost surely, 2^878223882497 is an apocalyptic number.

It is an amenable number.

878223882497 is a deficient number, since it is larger than the sum of its proper divisors (78182421223).

878223882497 is a wasteful number, since it uses less digits than its factorization.

878223882497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759052723.

The product of its digits is 173408256, while the sum is 68.

The spelling of 878223882497 in words is "eight hundred seventy-eight billion, two hundred twenty-three million, eight hundred eighty-two thousand, four hundred ninety-seven".