32543207540 has 48 divisors (see below), whose sum is σ = 70359377088. Its totient is φ = 12636497664.

The previous prime is 32543207539. The next prime is 32543207603. The reversal of 32543207540 is 4570234523.

It is a self number, because there is not a number n which added to its sum of digits gives 32543207540.

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, 24104 + ... + 256256.

It is an arithmetic number, because the mean of its divisors is an integer number (1465820356).

Almost surely, 2^32543207540 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 32543207540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35179688544).

32543207540 is an abundant number, since it is smaller than the sum of its proper divisors (37816169548).

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

32543207540 is a wasteful number, since it uses less digits than its factorization.

32543207540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232368 (or 232366 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 35.

The spelling of 32543207540 in words is "thirty-two billion, five hundred forty-three million, two hundred seven thousand, five hundred forty".