21077233583 has 8 divisors (see below), whose sum is σ = 24301438368. Its totient is φ = 17906321664.

The previous prime is 21077233579. The next prime is 21077233601. The reversal of 21077233583 is 38533277012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21077233583 - 2² = 21077233579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21077233583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21077233183) by changing a digit.

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, 13322366 + ... + 13323947.

It is an arithmetic number, because the mean of its divisors is an integer number (3037679796).

Almost surely, 2^21077233583 is an apocalyptic number.

21077233583 is a deficient number, since it is larger than the sum of its proper divisors (3224204785).

21077233583 is a wasteful number, since it uses less digits than its factorization.

21077233583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26646433.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 21077233583 in words is "twenty-one billion, seventy-seven million, two hundred thirty-three thousand, five hundred eighty-three".