78739345222 has 8 divisors (see below), whose sum is σ = 118120766400. Its totient is φ = 39365756424.

The previous prime is 78739345163. The next prime is 78739345229. The reversal of 78739345222 is 22254393787.

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

It is a self number, because there is not a number n which added to its sum of digits gives 78739345222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78739345229) 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, 1932897 + ... + 1973212.

It is an arithmetic number, because the mean of its divisors is an integer number (14765095800).

Almost surely, 2^78739345222 is an apocalyptic number.

78739345222 is a deficient number, since it is larger than the sum of its proper divisors (39381421178).

78739345222 is a wasteful number, since it uses less digits than its factorization.

78739345222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3916190.

The product of its digits is 5080320, while the sum is 52.

The spelling of 78739345222 in words is "seventy-eight billion, seven hundred thirty-nine million, three hundred forty-five thousand, two hundred twenty-two".