79370605954609 has 4 divisors (see below), whose sum is σ = 80156453538420. Its totient is φ = 78584758370800.

The previous prime is 79370605954603. The next prime is 79370605954631. The reversal of 79370605954609 is 90645950607397.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 75504282062400 + 3866323892209 = 8689320^2 + 1966297^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79370605954609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79370605954603) 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, 392923791754 + ... + 392923791955.

It is an arithmetic number, because the mean of its divisors is an integer number (20039113384605).

Almost surely, 2^{79370605954609} is an apocalyptic number.

It is an amenable number.

79370605954609 is a deficient number, since it is larger than the sum of its proper divisors (785847583811).

79370605954609 is a wasteful number, since it uses less digits than its factorization.

79370605954609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785847583810.

The product of its (nonzero) digits is 385786800, while the sum is 70.

The spelling of 79370605954609 in words is "seventy-nine trillion, three hundred seventy billion, six hundred five million, nine hundred fifty-four thousand, six hundred nine".