78203781034568 has 32 divisors (see below), whose sum is σ = 170326736218560. Its totient is φ = 32966465071680.

The previous prime is 78203781034567. The next prime is 78203781034573. The reversal of 78203781034568 is 86543018730287.

It is a super-2 number, since 2×78203781034568² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78203781034568.

It is not an unprimeable number, because it can be changed into a prime (78203781034567) 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, 11446685846 + ... + 11446692677.

It is an arithmetic number, because the mean of its divisors is an integer number (5322710506830).

Almost surely, 2^{78203781034568} is an apocalyptic number.

It is an amenable number.

78203781034568 is an abundant number, since it is smaller than the sum of its proper divisors (92122955183992).

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

78203781034568 is a wasteful number, since it uses less digits than its factorization.

78203781034568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22893378597 (or 22893378593 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 62.

The spelling of 78203781034568 in words is "seventy-eight trillion, two hundred three billion, seven hundred eighty-one million, thirty-four thousand, five hundred sixty-eight".