78338012278374 has 80 divisors (see below), whose sum is σ = 175911837138576. Its totient is φ = 26056650110400.

The previous prime is 78338012278369. The next prime is 78338012278399. The reversal of 78338012278374 is 47387221083387.

It is a happy number.

78338012278374 is a `hidden beast` number, since 7 + 8 + 3 + 38 + 0 + 1 + 227 + 8 + 374 = 666.

It is a super-2 number, since 2×78338012278374² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 806586864 + ... + 806683980.

Almost surely, 2^{78338012278374} is an apocalyptic number.

78338012278374 is an abundant number, since it is smaller than the sum of its proper divisors (97573824860202).

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

78338012278374 is a wasteful number, since it uses less digits than its factorization.

78338012278374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107763 (or 107754 counting only the distinct ones).

The product of its (nonzero) digits is 75866112, while the sum is 63.

The spelling of 78338012278374 in words is "seventy-eight trillion, three hundred thirty-eight billion, twelve million, two hundred seventy-eight thousand, three hundred seventy-four".