64088938240 has 72 divisors (see below), whose sum is σ = 153562817520. Its totient is φ = 25627262976.

The previous prime is 64088938217. The next prime is 64088938259. The reversal of 64088938240 is 4283988046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5291872 + ... + 5303968.

It is an arithmetic number, because the mean of its divisors is an integer number (2132816910).

Almost surely, 2^64088938240 is an apocalyptic number.

It is an amenable number.

64088938240 is an abundant number, since it is smaller than the sum of its proper divisors (89473879280).

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

64088938240 is a wasteful number, since it uses less digits than its factorization.

64088938240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16257 (or 16243 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 52.

The spelling of 64088938240 in words is "sixty-four billion, eighty-eight million, nine hundred thirty-eight thousand, two hundred forty".