78423204003194 has 8 divisors (see below), whose sum is σ = 122749362787680. Its totient is φ = 37506749740636.

The previous prime is 78423204003173. The next prime is 78423204003197. The reversal of 78423204003194 is 49130040232487.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78423204003194² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78423204003197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852426130424 + ... + 852426130515.

It is an arithmetic number, because the mean of its divisors is an integer number (15343670348460).

Almost surely, 2^{78423204003194} is an apocalyptic number.

78423204003194 is a deficient number, since it is larger than the sum of its proper divisors (44326158784486).

78423204003194 is a wasteful number, since it uses less digits than its factorization.

78423204003194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704852260964.

The product of its (nonzero) digits is 1161216, while the sum is 47.

The spelling of 78423204003194 in words is "seventy-eight trillion, four hundred twenty-three billion, two hundred four million, three thousand, one hundred ninety-four".