20197288352 has 24 divisors (see below), whose sum is σ = 40157115012. Its totient is φ = 9998656000.

The previous prime is 20197288343. The next prime is 20197288369. The reversal of 20197288352 is 25388279102.

It can be written as a sum of positive squares in 2 ways, for example, as 18386275216 + 1811013136 = 135596^2 + 42556^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20197288297 and 20197288306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3121349 + ... + 3127812.

Almost surely, 2^20197288352 is an apocalyptic number.

It is an amenable number.

20197288352 is a deficient number, since it is larger than the sum of its proper divisors (19959826660).

20197288352 is a wasteful number, since it uses less digits than its factorization.

20197288352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6249272 (or 6249264 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 20197288352 in words is "twenty billion, one hundred ninety-seven million, two hundred eighty-eight thousand, three hundred fifty-two".