791278327642 has 8 divisors (see below), whose sum is σ = 1294819081632. Its totient is φ = 359671967100.

The previous prime is 791278327601. The next prime is 791278327667. The reversal of 791278327642 is 246723872197.

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

It is a super-2 number, since 2×791278327642² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17983598334 + ... + 17983598377.

It is an arithmetic number, because the mean of its divisors is an integer number (161852385204).

Almost surely, 2^791278327642 is an apocalyptic number.

791278327642 is a deficient number, since it is larger than the sum of its proper divisors (503540753990).

791278327642 is a wasteful number, since it uses less digits than its factorization.

791278327642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35967196724.

The product of its digits is 14224896, while the sum is 58.

Subtracting from 791278327642 its reverse (246723872197), we obtain a palindrome (544554455445).

The spelling of 791278327642 in words is "seven hundred ninety-one billion, two hundred seventy-eight million, three hundred twenty-seven thousand, six hundred forty-two".