78379700042 has 8 divisors (see below), whose sum is σ = 134365200096. Its totient is φ = 33591300012.

The previous prime is 78379700017. The next prime is 78379700057. The reversal of 78379700042 is 24000797387.

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

It is a super-2 number, since 2×78379700042² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78379700042.

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, 2799274988 + ... + 2799275015.

It is an arithmetic number, because the mean of its divisors is an integer number (16795650012).

Almost surely, 2^78379700042 is an apocalyptic number.

78379700042 is a deficient number, since it is larger than the sum of its proper divisors (55985500054).

78379700042 is a wasteful number, since it uses less digits than its factorization.

78379700042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5598550012.

The product of its (nonzero) digits is 592704, while the sum is 47.

The spelling of 78379700042 in words is "seventy-eight billion, three hundred seventy-nine million, seven hundred thousand, forty-two".