21230276674 has 16 divisors (see below), whose sum is σ = 33565113720. Its totient is φ = 10055718400.

The previous prime is 21230276663. The next prime is 21230276687. The reversal of 21230276674 is 47667203212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21122262225 + 108014449 = 145335^2 + 10393^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3450127 + ... + 3456274.

Almost surely, 2^21230276674 is an apocalyptic number.

21230276674 is a deficient number, since it is larger than the sum of its proper divisors (12334837046).

21230276674 is a wasteful number, since it uses less digits than its factorization.

21230276674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6906485.

The product of its (nonzero) digits is 169344, while the sum is 40.

Adding to 21230276674 its reverse (47667203212), we get a palindrome (68897479886).

The spelling of 21230276674 in words is "twenty-one billion, two hundred thirty million, two hundred seventy-six thousand, six hundred seventy-four".