78894033646804 has 24 divisors (see below), whose sum is σ = 144067951113408. Its totient is φ = 37731775836480.

The previous prime is 78894033646801. The next prime is 78894033646867. The reversal of 78894033646804 is 40864633049887.

It is a super-3 number, since 3×78894033646804³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78894033646801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22911159 + ... + 26128705.

It is an arithmetic number, because the mean of its divisors is an integer number (6002831296392).

Almost surely, 2^{78894033646804} is an apocalyptic number.

It is an amenable number.

78894033646804 is a deficient number, since it is larger than the sum of its proper divisors (65173917466604).

78894033646804 is a wasteful number, since it uses less digits than its factorization.

78894033646804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3484095 (or 3484093 counting only the distinct ones).

The product of its (nonzero) digits is 668860416, while the sum is 70.

The spelling of 78894033646804 in words is "seventy-eight trillion, eight hundred ninety-four billion, thirty-three million, six hundred forty-six thousand, eight hundred four".