78429769822 has 8 divisors (see below), whose sum is σ = 117685526400. Its totient is φ = 39201261024.

The previous prime is 78429769819. The next prime is 78429769853. The reversal of 78429769822 is 22896792487.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6804747 + ... + 6816262.

It is an arithmetic number, because the mean of its divisors is an integer number (14710690800).

Almost surely, 2^78429769822 is an apocalyptic number.

78429769822 is a deficient number, since it is larger than the sum of its proper divisors (39255756578).

78429769822 is a wasteful number, since it uses less digits than its factorization.

78429769822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13623890.

The product of its digits is 48771072, while the sum is 64.

The spelling of 78429769822 in words is "seventy-eight billion, four hundred twenty-nine million, seven hundred sixty-nine thousand, eight hundred twenty-two".