817578601896 has 64 divisors (see below), whose sum is σ = 2368839444480. Its totient is φ = 230303828160.

The previous prime is 817578601867. The next prime is 817578601993. The reversal of 817578601896 is 698106875718.

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, 34259476 + ... + 34283331.

It is an arithmetic number, because the mean of its divisors is an integer number (37013116320).

Almost surely, 2^817578601896 is an apocalyptic number.

It is an amenable number.

817578601896 is an abundant number, since it is smaller than the sum of its proper divisors (1551260842584).

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

817578601896 is a wasteful number, since it uses less digits than its factorization.

817578601896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68542894 (or 68542890 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 66.

The spelling of 817578601896 in words is "eight hundred seventeen billion, five hundred seventy-eight million, six hundred one thousand, eight hundred ninety-six".