21073176282 has 16 divisors (see below), whose sum is σ = 42147923040. Its totient is φ = 7024130352.

The previous prime is 21073176277. The next prime is 21073176283. The reversal of 21073176282 is 28267137012.

It is a super-2 number, since 2×21073176282² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21073176282.

It is not an unprimeable number, because it can be changed into a prime (21073176283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179569 + ... + 272747.

It is an arithmetic number, because the mean of its divisors is an integer number (2634245190).

Almost surely, 2^21073176282 is an apocalyptic number.

21073176282 is an abundant number, since it is smaller than the sum of its proper divisors (21074746758).

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

21073176282 is a wasteful number, since it uses less digits than its factorization.

21073176282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130877.

The product of its (nonzero) digits is 56448, while the sum is 39.

The spelling of 21073176282 in words is "twenty-one billion, seventy-three million, one hundred seventy-six thousand, two hundred eighty-two".