21764046283 has 4 divisors (see below), whose sum is σ = 24873195760. Its totient is φ = 18654896808.

The previous prime is 21764046281. The next prime is 21764046287. The reversal of 21764046283 is 38264046712.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21764046283 - 2¹ = 21764046281 is a prime.

It is a super-2 number, since 2×21764046283² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21764046281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1554574728 + ... + 1554574741.

It is an arithmetic number, because the mean of its divisors is an integer number (6218298940).

Almost surely, 2^21764046283 is an apocalyptic number.

21764046283 is a deficient number, since it is larger than the sum of its proper divisors (3109149477).

21764046283 is an equidigital number, since it uses as much as digits as its factorization.

21764046283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3109149476.

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 21764046283 in words is "twenty-one billion, seven hundred sixty-four million, forty-six thousand, two hundred eighty-three".