79547826101 has 4 divisors (see below), whose sum is σ = 80896094400. Its totient is φ = 78199557804.

The previous prime is 79547826067. The next prime is 79547826109. The reversal of 79547826101 is 10162874597.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79547826101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79547826101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79547826109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674134061 + ... + 674134178.

It is an arithmetic number, because the mean of its divisors is an integer number (20224023600).

Almost surely, 2^79547826101 is an apocalyptic number.

It is an amenable number.

79547826101 is a deficient number, since it is larger than the sum of its proper divisors (1348268299).

79547826101 is a wasteful number, since it uses less digits than its factorization.

79547826101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348268298.

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 79547826101 in words is "seventy-nine billion, five hundred forty-seven million, eight hundred twenty-six thousand, one hundred one".