20187859094272 has 72 divisors (see below), whose sum is σ = 40350907378656. Its totient is φ = 10080396189696.

The previous prime is 20187859094261. The next prime is 20187859094353. The reversal of 20187859094272 is 27249095878102.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1902176838 + ... + 1902187450.

It is an arithmetic number, because the mean of its divisors is an integer number (560429269148).

Almost surely, 2^{20187859094272} is an apocalyptic number.

It is an amenable number.

20187859094272 is a deficient number, since it is larger than the sum of its proper divisors (20163048284384).

20187859094272 is an equidigital number, since it uses as much as digits as its factorization.

20187859094272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19893 (or 19879 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 64.

The spelling of 20187859094272 in words is "twenty trillion, one hundred eighty-seven billion, eight hundred fifty-nine million, ninety-four thousand, two hundred seventy-two".