20751547268 has 24 divisors (see below), whose sum is σ = 36513288000. Its totient is φ = 10319224608.

The previous prime is 20751547217. The next prime is 20751547277. The reversal of 20751547268 is 86274515702.

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, 2660318 + ... + 2668106.

It is an arithmetic number, because the mean of its divisors is an integer number (1521387000).

Almost surely, 2^20751547268 is an apocalyptic number.

It is an amenable number.

20751547268 is a deficient number, since it is larger than the sum of its proper divisors (15761740732).

20751547268 is a wasteful number, since it uses less digits than its factorization.

20751547268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11339 (or 11337 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 47.

The spelling of 20751547268 in words is "twenty billion, seven hundred fifty-one million, five hundred forty-seven thousand, two hundred sixty-eight".