79521350123 has 8 divisors (see below), whose sum is σ = 85969027920. Its totient is φ = 73299906720.

The previous prime is 79521350119. The next prime is 79521350131. The reversal of 79521350123 is 32105312597.

It is a happy number.

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

It is not a de Polignac number, because 79521350123 - 2² = 79521350119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79521350113) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 56557868 + ... + 56559273.

It is an arithmetic number, because the mean of its divisors is an integer number (10746128490).

Almost surely, 2^79521350123 is an apocalyptic number.

79521350123 is a deficient number, since it is larger than the sum of its proper divisors (6447677797).

79521350123 is a wasteful number, since it uses less digits than its factorization.

79521350123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113117197.

The product of its (nonzero) digits is 56700, while the sum is 38.

The spelling of 79521350123 in words is "seventy-nine billion, five hundred twenty-one million, three hundred fifty thousand, one hundred twenty-three".