20875787662 has 32 divisors (see below), whose sum is σ = 32872992768. Its totient is φ = 9934094016.

The previous prime is 20875787657. The next prime is 20875787677. The reversal of 20875787662 is 26678757802.

It is a super-2 number, since 2×20875787662² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20875787597 and 20875787606.

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 15 ways as a sum of consecutive naturals, for example, 501043 + ... + 541105.

It is an arithmetic number, because the mean of its divisors is an integer number (1027281024).

Almost surely, 2^20875787662 is an apocalyptic number.

20875787662 is a deficient number, since it is larger than the sum of its proper divisors (11997205106).

20875787662 is a wasteful number, since it uses less digits than its factorization.

20875787662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40264.

The product of its (nonzero) digits is 15805440, while the sum is 58.

The spelling of 20875787662 in words is "twenty billion, eight hundred seventy-five million, seven hundred eighty-seven thousand, six hundred sixty-two".