20750186872 has 32 divisors (see below), whose sum is σ = 39167906400. Its totient is φ = 10305503104.

The previous prime is 20750186869. The next prime is 20750186903. The reversal of 20750186872 is 27868105702.

It is a super-2 number, since 2×20750186872² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2150154 + ... + 2159782.

It is an arithmetic number, because the mean of its divisors is an integer number (1223997075).

Almost surely, 2^20750186872 is an apocalyptic number.

It is an amenable number.

20750186872 is a deficient number, since it is larger than the sum of its proper divisors (18417719528).

20750186872 is a wasteful number, since it uses less digits than its factorization.

20750186872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11415 (or 11411 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 46.

The spelling of 20750186872 in words is "twenty billion, seven hundred fifty million, one hundred eighty-six thousand, eight hundred seventy-two".