20027890104192 has 192 divisors, whose sum is σ = 62076452380800. Its totient is φ = 6177512936448.

The previous prime is 20027890104179. The next prime is 20027890104197. The reversal of 20027890104192 is 29140109872002.

20027890104192 is a `hidden beast` number, since 2 + 0 + 0 + 278 + 90 + 104 + 192 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×20027890104192² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20027890104197) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9698548 + ... + 11580915.

It is an arithmetic number, because the mean of its divisors is an integer number (323314856150).

Almost surely, 2^{20027890104192} is an apocalyptic number.

It is an amenable number.

20027890104192 is an abundant number, since it is smaller than the sum of its proper divisors (42048562276608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20027890104192 is a wasteful number, since it uses less digits than its factorization.

20027890104192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21279545 (or 21279530 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

Adding to 20027890104192 its reverse (29140109872002), we get a palindrome (49167999976194).

The spelling of 20027890104192 in words is "twenty trillion, twenty-seven billion, eight hundred ninety million, one hundred four thousand, one hundred ninety-two".