20287200288 has 48 divisors (see below), whose sum is σ = 53360748000. Its totient is φ = 6748832256.

The previous prime is 20287200287. The next prime is 20287200317. The reversal of 20287200288 is 88200278202.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (20287200287) 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, 163845 + ... + 259652.

It is an arithmetic number, because the mean of its divisors is an integer number (1111682250).

Almost surely, 2^20287200288 is an apocalyptic number.

It is an amenable number.

20287200288 is an abundant number, since it is smaller than the sum of its proper divisors (33073547712).

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

20287200288 is a wasteful number, since it uses less digits than its factorization.

20287200288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424009 (or 424001 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The spelling of 20287200288 in words is "twenty billion, two hundred eighty-seven million, two hundred thousand, two hundred eighty-eight".