79334440142 has 4 divisors (see below), whose sum is σ = 119001660216. Its totient is φ = 39667220070.

The previous prime is 79334440127. The next prime is 79334440181. The reversal of 79334440142 is 24104443397.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 79334440142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19833610034 + ... + 19833610037.

It is an arithmetic number, because the mean of its divisors is an integer number (29750415054).

Almost surely, 2^79334440142 is an apocalyptic number.

79334440142 is a deficient number, since it is larger than the sum of its proper divisors (39667220074).

79334440142 is a wasteful number, since it uses less digits than its factorization.

79334440142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39667220073.

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 79334440142 in words is "seventy-nine billion, three hundred thirty-four million, four hundred forty thousand, one hundred forty-two".