20468827216 has 10 divisors (see below), whose sum is σ = 39658352762. Its totient is φ = 10234413600.

The previous prime is 20468827187. The next prime is 20468827229. The reversal of 20468827216 is 61272886402.

It can be written as a sum of positive squares in only one way, i.e., 15830672400 + 4638154816 = 125820^2 + 68104^2 .

It is a super-3 number, since 3×20468827216³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639650835 + ... + 639650866.

Almost surely, 2^20468827216 is an apocalyptic number.

It is an amenable number.

20468827216 is a deficient number, since it is larger than the sum of its proper divisors (19189525546).

20468827216 is a wasteful number, since it uses less digits than its factorization.

20468827216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279301709 (or 1279301703 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 46.

The spelling of 20468827216 in words is "twenty billion, four hundred sixty-eight million, eight hundred twenty-seven thousand, two hundred sixteen".