79133747642 has 8 divisors (see below), whose sum is σ = 118726878816. Its totient is φ = 39558121372.

The previous prime is 79133747639. The next prime is 79133747689. The reversal of 79133747642 is 24674733197.

It is a happy number.

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, 4364918 + ... + 4383009.

It is an arithmetic number, because the mean of its divisors is an integer number (14840859852).

Almost surely, 2^79133747642 is an apocalyptic number.

79133747642 is a deficient number, since it is larger than the sum of its proper divisors (39593131174).

79133747642 is a wasteful number, since it uses less digits than its factorization.

79133747642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8752452.

The product of its digits is 5334336, while the sum is 53.

The spelling of 79133747642 in words is "seventy-nine billion, one hundred thirty-three million, seven hundred forty-seven thousand, six hundred forty-two".