12534141540 has 96 divisors (see below), whose sum is σ = 37024081920. Its totient is φ = 3159547776.

The previous prime is 12534141527. The next prime is 12534141551. The reversal of 12534141540 is 4514143521.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12534141498 and 12534141507.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 515947 + ... + 539693.

It is an arithmetic number, because the mean of its divisors is an integer number (385667520).

Almost surely, 2^12534141540 is an apocalyptic number.

12534141540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12534141540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18512040960).

12534141540 is an abundant number, since it is smaller than the sum of its proper divisors (24489940380).

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

12534141540 is a wasteful number, since it uses less digits than its factorization.

12534141540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24241 (or 24239 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 12534141540 in words is "twelve billion, five hundred thirty-four million, one hundred forty-one thousand, five hundred forty".