78214022241878 has 8 divisors (see below), whose sum is σ = 117323800299768. Its totient is φ = 39106088808624.

The previous prime is 78214022241871. The next prime is 78214022241889. The reversal of 78214022241878 is 87814222041287.

78214022241878 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×78214022241878² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78214022241871) 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, 461050151 + ... + 461219762.

It is an arithmetic number, because the mean of its divisors is an integer number (14665475037471).

Almost surely, 2^{78214022241878} is an apocalyptic number.

78214022241878 is a deficient number, since it is larger than the sum of its proper divisors (39109778057890).

78214022241878 is a wasteful number, since it uses less digits than its factorization.

78214022241878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922312318.

The product of its (nonzero) digits is 6422528, while the sum is 56.

The spelling of 78214022241878 in words is "seventy-eight trillion, two hundred fourteen billion, twenty-two million, two hundred forty-one thousand, eight hundred seventy-eight".