79841570413 has 4 divisors (see below), whose sum is σ = 87099895008. Its totient is φ = 72583245820.

The previous prime is 79841570359. The next prime is 79841570437. The reversal of 79841570413 is 31407514897.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31407514897 = 11 ⋅2855228627.

It is a cyclic number.

It is not a de Polignac number, because 79841570413 - 2⁹ = 79841569901 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79841570453) 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, 3629162281 + ... + 3629162302.

It is an arithmetic number, because the mean of its divisors is an integer number (21774973752).

Almost surely, 2^79841570413 is an apocalyptic number.

It is an amenable number.

79841570413 is a deficient number, since it is larger than the sum of its proper divisors (7258324595).

79841570413 is a wasteful number, since it uses less digits than its factorization.

79841570413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7258324594.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 79841570413 in words is "seventy-nine billion, eight hundred forty-one million, five hundred seventy thousand, four hundred thirteen".