7973278385942 has 8 divisors (see below), whose sum is σ = 12372328530000. Its totient is φ = 3849168875944.

The previous prime is 7973278385939. The next prime is 7973278385953. The reversal of 7973278385942 is 2495838723797.

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 7973278385942.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68735158442 + ... + 68735158557.

It is an arithmetic number, because the mean of its divisors is an integer number (1546541066250).

Almost surely, 2^{7973278385942} is an apocalyptic number.

7973278385942 is a deficient number, since it is larger than the sum of its proper divisors (4399050144058).

7973278385942 is a wasteful number, since it uses less digits than its factorization.

7973278385942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137470317030.

The product of its digits is 1280240640, while the sum is 74.

The spelling of 7973278385942 in words is "seven trillion, nine hundred seventy-three billion, two hundred seventy-eight million, three hundred eighty-five thousand, nine hundred forty-two".