13526472309 has 16 divisors (see below), whose sum is σ = 20656300032. Its totient is φ = 7712713008.

The previous prime is 13526472307. The next prime is 13526472313. The reversal of 13526472309 is 90327462531.

It is not a de Polignac number, because 13526472309 - 2¹ = 13526472307 is a prime.

It is a super-2 number, since 2×13526472309² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13526472307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685869 + ... + 705314.

It is an arithmetic number, because the mean of its divisors is an integer number (1291018752).

Almost surely, 2^13526472309 is an apocalyptic number.

It is an amenable number.

13526472309 is a deficient number, since it is larger than the sum of its proper divisors (7129827723).

13526472309 is a wasteful number, since it uses less digits than its factorization.

13526472309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391656.

The product of its (nonzero) digits is 272160, while the sum is 42.

The spelling of 13526472309 in words is "thirteen billion, five hundred twenty-six million, four hundred seventy-two thousand, three hundred nine".