79442944454 has 8 divisors (see below), whose sum is σ = 119165631408. Its totient is φ = 39721067320.

The previous prime is 79442944429. The next prime is 79442944517. The reversal of 79442944454 is 45444924497.

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

It is a super-2 number, since 2×79442944454² (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 79442944454.

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, 214724 + ... + 452760.

It is an arithmetic number, because the mean of its divisors is an integer number (14895703926).

Almost surely, 2^79442944454 is an apocalyptic number.

79442944454 is a deficient number, since it is larger than the sum of its proper divisors (39722686954).

79442944454 is a wasteful number, since it uses less digits than its factorization.

79442944454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404910.

The product of its digits is 23224320, while the sum is 56.

The spelling of 79442944454 in words is "seventy-nine billion, four hundred forty-two million, nine hundred forty-four thousand, four hundred fifty-four".