79128401734 has 4 divisors (see below), whose sum is σ = 118692602604. Its totient is φ = 39564200866.

The previous prime is 79128401717. The next prime is 79128401741. The reversal of 79128401734 is 43710482197.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43710482197 = 79 ⋅553297243.

It is a super-2 number, since 2×79128401734² (a number of 23 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 19782100432 + ... + 19782100435.

It is an arithmetic number, because the mean of its divisors is an integer number (29673150651).

Almost surely, 2^79128401734 is an apocalyptic number.

79128401734 is a deficient number, since it is larger than the sum of its proper divisors (39564200870).

79128401734 is a wasteful number, since it uses less digits than its factorization.

79128401734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39564200869.

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 79128401734 in words is "seventy-nine billion, one hundred twenty-eight million, four hundred one thousand, seven hundred thirty-four".