13279497469 has 32 divisors (see below), whose sum is σ = 15713657856. Its totient is φ = 10985103360.

The previous prime is 13279497449. The next prime is 13279497509. The reversal of 13279497469 is 96479497231.

It is not a de Polignac number, because 13279497469 - 2⁵ = 13279497437 is a prime.

It is a super-2 number, since 2×13279497469² (a number of 21 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 (13279497449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30810684 + ... + 30811114.

It is an arithmetic number, because the mean of its divisors is an integer number (491051808).

Almost surely, 2^13279497469 is an apocalyptic number.

It is an amenable number.

13279497469 is a deficient number, since it is larger than the sum of its proper divisors (2434160387).

13279497469 is a wasteful number, since it uses less digits than its factorization.

13279497469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165.

The product of its digits is 20575296, while the sum is 61.

The spelling of 13279497469 in words is "thirteen billion, two hundred seventy-nine million, four hundred ninety-seven thousand, four hundred sixty-nine".