20028573445045 has 16 divisors (see below), whose sum is σ = 26221225982400. Its totient is φ = 14565122697600.

The previous prime is 20028573445033. The next prime is 20028573445061. The reversal of 20028573445045 is 54054437582002.

It is not a de Polignac number, because 20028573445045 - 2⁷ = 20028573444917 is a prime.

It is a super-2 number, since 2×20028573445045² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20028573445045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13179696 + ... + 14620585.

It is an arithmetic number, because the mean of its divisors is an integer number (1638826623900).

Almost surely, 2^{20028573445045} is an apocalyptic number.

It is an amenable number.

20028573445045 is a deficient number, since it is larger than the sum of its proper divisors (6192652537355).

20028573445045 is a wasteful number, since it uses less digits than its factorization.

20028573445045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27813396.

The product of its (nonzero) digits is 5376000, while the sum is 49.

The spelling of 20028573445045 in words is "twenty trillion, twenty-eight billion, five hundred seventy-three million, four hundred forty-five thousand, forty-five".