20457372576573 has 32 divisors (see below), whose sum is σ = 31552720880000. Its totient is φ = 13087871042688.

The previous prime is 20457372576569. The next prime is 20457372576577. The reversal of 20457372576573 is 37567527375402.

20457372576573 is a `hidden beast` number, since 2 + 0 + 4 + 5 + 7 + 3 + 7 + 2 + 57 + 6 + 573 = 666.

It is an interprime number because it is at equal distance from previous prime (20457372576569) and next prime (20457372576577).

It is not a de Polignac number, because 20457372576573 - 2² = 20457372576569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20457372576573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20457372576577) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140186323 + ... + 140332176.

It is an arithmetic number, because the mean of its divisors is an integer number (986022527500).

Almost surely, 2^{20457372576573} is an apocalyptic number.

It is an amenable number.

20457372576573 is a deficient number, since it is larger than the sum of its proper divisors (11095348303427).

20457372576573 is a wasteful number, since it uses less digits than its factorization.

20457372576573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280518618 (or 280518612 counting only the distinct ones).

The product of its (nonzero) digits is 259308000, while the sum is 63.

The spelling of 20457372576573 in words is "twenty trillion, four hundred fifty-seven billion, three hundred seventy-two million, five hundred seventy-six thousand, five hundred seventy-three".