650131385532 has 24 divisors (see below), whose sum is σ = 1517503537872. Its totient is φ = 216634704000.

The previous prime is 650131385447. The next prime is 650131385539. The reversal of 650131385532 is 235583131056.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650131385539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9433969 + ... + 9502632.

It is an arithmetic number, because the mean of its divisors is an integer number (63229314078).

Almost surely, 2^650131385532 is an apocalyptic number.

It is an amenable number.

650131385532 is an abundant number, since it is smaller than the sum of its proper divisors (867372152340).

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

650131385532 is a wasteful number, since it uses less digits than its factorization.

650131385532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18939469 (or 18939467 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 650131385532 in words is "six hundred fifty billion, one hundred thirty-one million, three hundred eighty-five thousand, five hundred thirty-two".