79458849269 has 8 divisors (see below), whose sum is σ = 84315408408. Its totient is φ = 74622568960.

The previous prime is 79458849257. The next prime is 79458849287. The reversal of 79458849269 is 96294885497.

It can be written as a sum of positive squares in 4 ways, for example, as 22421468644 + 57037380625 = 149738^2 + 238825^2 .

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

It is not a de Polignac number, because 79458849269 - 2⁸ = 79458849013 is a prime.

It is a super-2 number, since 2×79458849269² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79458849299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5061632 + ... + 5077305.

It is an arithmetic number, because the mean of its divisors is an integer number (10539426051).

Almost surely, 2^79458849269 is an apocalyptic number.

It is an amenable number.

79458849269 is a deficient number, since it is larger than the sum of its proper divisors (4856559139).

79458849269 is a wasteful number, since it uses less digits than its factorization.

79458849269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10139415.

The product of its digits is 313528320, while the sum is 71.

The spelling of 79458849269 in words is "seventy-nine billion, four hundred fifty-eight million, eight hundred forty-nine thousand, two hundred sixty-nine".