15345299969 has 8 divisors (see below), whose sum is σ = 16144430568. Its totient is φ = 14566400640.

The previous prime is 15345299947. The next prime is 15345299971. The reversal of 15345299969 is 96999254351.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2306400625 + 13038899344 = 48025^2 + 114188^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 15345299969 - 2¹² = 15345295873 is a prime.

It is a super-2 number, since 2×15345299969² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15345299929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5056262 + ... + 5059295.

It is an arithmetic number, because the mean of its divisors is an integer number (2018053821).

Almost surely, 2^15345299969 is an apocalyptic number.

It is an amenable number.

15345299969 is a deficient number, since it is larger than the sum of its proper divisors (799130599).

15345299969 is a wasteful number, since it uses less digits than its factorization.

15345299969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10115635.

The product of its digits is 23619600, while the sum is 62.

The spelling of 15345299969 in words is "fifteen billion, three hundred forty-five million, two hundred ninety-nine thousand, nine hundred sixty-nine".