647838025932 has 48 divisors (see below), whose sum is σ = 1553757867872. Its totient is φ = 209936240640.

The previous prime is 647838025883. The next prime is 647838025937. The reversal of 647838025932 is 239520838746.

647838025932 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (647838025937) 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, 62869 + ... + 1140012.

Almost surely, 2^647838025932 is an apocalyptic number.

It is an amenable number.

647838025932 is an abundant number, since it is smaller than the sum of its proper divisors (905919841940).

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

647838025932 is a wasteful number, since it uses less digits than its factorization.

647838025932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204138 (or 1204136 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 57.

The spelling of 647838025932 in words is "six hundred forty-seven billion, eight hundred thirty-eight million, twenty-five thousand, nine hundred thirty-two".