13540889869 has 16 divisors (see below), whose sum is σ = 15062408704. Its totient is φ = 12088440000.

The previous prime is 13540889867. The next prime is 13540889899. The reversal of 13540889869 is 96898804531.

It is not a de Polignac number, because 13540889869 - 2¹ = 13540889867 is a prime.

It is a super-2 number, since 2×13540889869² (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 (13540889867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 684619 + ... + 704119.

It is an arithmetic number, because the mean of its divisors is an integer number (941400544).

Almost surely, 2^13540889869 is an apocalyptic number.

It is an amenable number.

13540889869 is a deficient number, since it is larger than the sum of its proper divisors (1521518835).

13540889869 is a wasteful number, since it uses less digits than its factorization.

13540889869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21268.

The product of its (nonzero) digits is 14929920, while the sum is 61.

The spelling of 13540889869 in words is "thirteen billion, five hundred forty million, eight hundred eighty-nine thousand, eight hundred sixty-nine".