20925869490632 has 36 divisors (see below), whose sum is σ = 39333162955905. Its totient is φ = 10437089923776.

The previous prime is 20925869490611. The next prime is 20925869490719. The reversal of 20925869490632 is 23609496852902.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 17616941140516 + 3308928350116 = 4197254^2 + 1819046^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3234646.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5912931119 + ... + 5912934657.

Almost surely, 2^{20925869490632} is an apocalyptic number.

It is an amenable number.

20925869490632 is a deficient number, since it is larger than the sum of its proper divisors (18407293465273).

20925869490632 is an frugal number, since it uses more digits than its factorization.

20925869490632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7998 (or 3998 counting only the distinct ones).

The product of its (nonzero) digits is 100776960, while the sum is 65.

The spelling of 20925869490632 in words is "twenty trillion, nine hundred twenty-five billion, eight hundred sixty-nine million, four hundred ninety thousand, six hundred thirty-two".