79437228658 has 8 divisors (see below), whose sum is σ = 119175290028. Its totient is φ = 39712131984.

The previous prime is 79437228653. The next prime is 79437228671. The reversal of 79437228658 is 85682273497.

It can be written as a sum of positive squares in 2 ways, for example, as 68221783249 + 11215445409 = 261193^2 + 105903^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 79437228596 and 79437228605.

It is not an unprimeable number, because it can be changed into a prime (79437228653) 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, 3225841 + ... + 3250372.

Almost surely, 2^79437228658 is an apocalyptic number.

79437228658 is a deficient number, since it is larger than the sum of its proper divisors (39738061370).

79437228658 is a wasteful number, since it uses less digits than its factorization.

79437228658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6482348.

The product of its digits is 40642560, while the sum is 61.

The spelling of 79437228658 in words is "seventy-nine billion, four hundred thirty-seven million, two hundred twenty-eight thousand, six hundred fifty-eight".