13500681969 has 8 divisors (see below), whose sum is σ = 18108699840. Its totient is φ = 8946559376.

The previous prime is 13500681967. The next prime is 13500681973. The reversal of 13500681969 is 96918600531.

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 13500681969 - 2¹ = 13500681967 is a prime.

It is a super-2 number, since 2×13500681969² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13500681967) 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, 13473234 + ... + 13474235.

It is an arithmetic number, because the mean of its divisors is an integer number (2263587480).

Almost surely, 2^13500681969 is an apocalyptic number.

It is an amenable number.

13500681969 is a deficient number, since it is larger than the sum of its proper divisors (4608017871).

13500681969 is a wasteful number, since it uses less digits than its factorization.

13500681969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26947639.

The product of its (nonzero) digits is 349920, while the sum is 48.

The spelling of 13500681969 in words is "thirteen billion, five hundred million, six hundred eighty-one thousand, nine hundred sixty-nine".