13540420376 has 64 divisors (see below), whose sum is σ = 30839078400. Its totient is φ = 5444195328.

The previous prime is 13540420373. The next prime is 13540420381. The reversal of 13540420376 is 67302404531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13540420373) 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, 47816 + ... + 171368.

It is an arithmetic number, because the mean of its divisors is an integer number (481860600).

Almost surely, 2^13540420376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13540420376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15419539200).

13540420376 is an abundant number, since it is smaller than the sum of its proper divisors (17298658024).

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

13540420376 is a wasteful number, since it uses less digits than its factorization.

13540420376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123688 (or 123684 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 13540420376 in words is "thirteen billion, five hundred forty million, four hundred twenty thousand, three hundred seventy-six".