20787892260 has 48 divisors (see below), whose sum is σ = 59444534016. Its totient is φ = 5425491712.

The previous prime is 20787892241. The next prime is 20787892289. The reversal of 20787892260 is 6229878702.

It is a super-2 number, since 2×20787892260² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3682977 + ... + 3688616.

It is an arithmetic number, because the mean of its divisors is an integer number (1238427792).

Almost surely, 2^20787892260 is an apocalyptic number.

20787892260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20787892260 is an abundant number, since it is smaller than the sum of its proper divisors (38656641756).

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

20787892260 is a wasteful number, since it uses less digits than its factorization.

20787892260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7371652 (or 7371650 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 51.

The spelling of 20787892260 in words is "twenty billion, seven hundred eighty-seven million, eight hundred ninety-two thousand, two hundred sixty".