79469301409 has 27 divisors (see below), whose sum is σ = 86415608601. Its totient is φ = 73069257600.

The previous prime is 79469301407. The next prime is 79469301419. The reversal of 79469301409 is 90410396497.

The square root of 79469301409 is 281903.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 65646126225 + 13823175184 = 256215^2 + 117572^2 .

It is not a de Polignac number, because 79469301409 - 2¹ = 79469301407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79469301403) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 198177609 + ... + 198178009.

Almost surely, 2^79469301409 is an apocalyptic number.

79469301409 is the 281903-rd square number.

79469301409 is the 140952-nd centered octagonal number.

It is an amenable number.

79469301409 is a deficient number, since it is larger than the sum of its proper divisors (6946307192).

79469301409 is an frugal number, since it uses more digits than its factorization.

79469301409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 52.

The spelling of 79469301409 in words is "seventy-nine billion, four hundred sixty-nine million, three hundred one thousand, four hundred nine".