20067281572028 has 12 divisors (see below), whose sum is σ = 35119698534312. Its totient is φ = 10033081990800.

The previous prime is 20067281572021. The next prime is 20067281572097. The reversal of 20067281572028 is 82027518276002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20067281572021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139617998 + ... + 139761653.

It is an arithmetic number, because the mean of its divisors is an integer number (2926641544526).

Almost surely, 2^{20067281572028} is an apocalyptic number.

It is an amenable number.

20067281572028 is a deficient number, since it is larger than the sum of its proper divisors (15052416962284).

20067281572028 is a wasteful number, since it uses less digits than its factorization.

20067281572028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279397612 (or 279397610 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 50.

The spelling of 20067281572028 in words is "twenty trillion, sixty-seven billion, two hundred eighty-one million, five hundred seventy-two thousand, twenty-eight".