78203781041064 has 32 divisors (see below), whose sum is σ = 223439374403520. Its totient is φ = 22343937440256.

The previous prime is 78203781041041. The next prime is 78203781041107. The reversal of 78203781041064 is 46014018730287.

It is a super-2 number, since 2×78203781041064² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78203781040998 and 78203781041016.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232749348169 + ... + 232749348504.

It is an arithmetic number, because the mean of its divisors is an integer number (6982480450110).

Almost surely, 2^{78203781041064} is an apocalyptic number.

It is an amenable number.

78203781041064 is an abundant number, since it is smaller than the sum of its proper divisors (145235593362456).

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

78203781041064 is a wasteful number, since it uses less digits than its factorization.

78203781041064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465498696689 (or 465498696685 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The spelling of 78203781041064 in words is "seventy-eight trillion, two hundred three billion, seven hundred eighty-one million, forty-one thousand, sixty-four".