13540683534 has 32 divisors (see below), whose sum is σ = 31705019136. Its totient is φ = 3774406080.

The previous prime is 13540683517. The next prime is 13540683571. The reversal of 13540683534 is 43538604531.

It is a super-2 number, since 2×13540683534² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3929952 + ... + 3933395.

It is an arithmetic number, because the mean of its divisors is an integer number (990781848).

Almost surely, 2^13540683534 is an apocalyptic number.

13540683534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13540683534 is an abundant number, since it is smaller than the sum of its proper divisors (18164335602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13540683534 is a wasteful number, since it uses less digits than its factorization.

13540683534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7863400.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 13540683534 in words is "thirteen billion, five hundred forty million, six hundred eighty-three thousand, five hundred thirty-four".