78673820122 has 8 divisors (see below), whose sum is σ = 118291041972. Its totient is φ = 39243472800.

The previous prime is 78673820119. The next prime is 78673820189. The reversal of 78673820122 is 22102837687.

It can be written as a sum of positive squares in 2 ways, for example, as 73066955481 + 5606864641 = 270309^2 + 74879^2 .

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

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, 46717579 + ... + 46719262.

Almost surely, 2^78673820122 is an apocalyptic number.

78673820122 is a deficient number, since it is larger than the sum of its proper divisors (39617221850).

78673820122 is a wasteful number, since it uses less digits than its factorization.

78673820122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93437264.

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 78673820122 in words is "seventy-eight billion, six hundred seventy-three million, eight hundred twenty thousand, one hundred twenty-two".