20488232815450 has 12 divisors (see below), whose sum is σ = 38108113036830. Its totient is φ = 8195293126160.

The previous prime is 20488232815399. The next prime is 20488232815511. The reversal of 20488232815450 is 5451823288402.

It can be written as a sum of positive squares in 3 ways, for example, as 18892070943001 + 1596161872449 = 4346501^2 + 1263393^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 204882328105 + ... + 204882328204.

Almost surely, 2^{20488232815450} is an apocalyptic number.

20488232815450 is a deficient number, since it is larger than the sum of its proper divisors (17619880221380).

20488232815450 is a wasteful number, since it uses less digits than its factorization.

20488232815450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409764656321 (or 409764656316 counting only the distinct ones).

The product of its (nonzero) digits is 4915200, while the sum is 52.

The spelling of 20488232815450 in words is "twenty trillion, four hundred eighty-eight billion, two hundred thirty-two million, eight hundred fifteen thousand, four hundred fifty".