20288790750 has 32 divisors (see below), whose sum is σ = 50640823584. Its totient is φ = 5410344000.

The previous prime is 20288790737. The next prime is 20288790859. The reversal of 20288790750 is 5709788202.

It is a self number, because there is not a number n which added to its sum of digits gives 20288790750.

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, 13525111 + ... + 13526610.

It is an arithmetic number, because the mean of its divisors is an integer number (1582525737).

Almost surely, 2^20288790750 is an apocalyptic number.

20288790750 is an abundant number, since it is smaller than the sum of its proper divisors (30352032834).

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

20288790750 is a wasteful number, since it uses less digits than its factorization.

20288790750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27051741 (or 27051731 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 48.

The spelling of 20288790750 in words is "twenty billion, two hundred eighty-eight million, seven hundred ninety thousand, seven hundred fifty".