21760331074 has 8 divisors (see below), whose sum is σ = 32647122828. Its totient is φ = 10877956800.

The previous prime is 21760331069. The next prime is 21760331081. The reversal of 21760331074 is 47013306712.

It can be written as a sum of positive squares in 2 ways, for example, as 19532019049 + 2228312025 = 139757^2 + 47205^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1092027 + ... + 1111774.

Almost surely, 2^21760331074 is an apocalyptic number.

21760331074 is a deficient number, since it is larger than the sum of its proper divisors (10886791754).

21760331074 is a wasteful number, since it uses less digits than its factorization.

21760331074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208740.

The product of its (nonzero) digits is 21168, while the sum is 34.

Adding to 21760331074 its reverse (47013306712), we get a palindrome (68773637786).

The spelling of 21760331074 in words is "twenty-one billion, seven hundred sixty million, three hundred thirty-one thousand, seventy-four".