20774483453450 has 12 divisors (see below), whose sum is σ = 38640539223510. Its totient is φ = 8309793381360.

The previous prime is 20774483453443. The next prime is 20774483453459. The reversal of 20774483453450 is 5435438447702.

It can be written as a sum of positive squares in 3 ways, for example, as 13415671633081 + 7358811820369 = 3662741^2 + 2712713^2 .

It is not an unprimeable number, because it can be changed into a prime (20774483453459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 207744834485 + ... + 207744834584.

Almost surely, 2^{20774483453450} is an apocalyptic number.

20774483453450 is a deficient number, since it is larger than the sum of its proper divisors (17866055770060).

20774483453450 is a wasteful number, since it uses less digits than its factorization.

20774483453450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415489669081 (or 415489669076 counting only the distinct ones).

The product of its (nonzero) digits is 45158400, while the sum is 56.

The spelling of 20774483453450 in words is "twenty trillion, seven hundred seventy-four billion, four hundred eighty-three million, four hundred fifty-three thousand, four hundred fifty".