21048316426 has 8 divisors (see below), whose sum is σ = 31707979524. Its totient is φ = 10478989920.

The previous prime is 21048316409. The next prime is 21048316469. The reversal of 21048316426 is 62461384012.

It can be written as a sum of positive squares in 2 ways, for example, as 20901930625 + 146385801 = 144575^2 + 12099^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22583565 + ... + 22584496.

Almost surely, 2^21048316426 is an apocalyptic number.

21048316426 is a deficient number, since it is larger than the sum of its proper divisors (10659663098).

21048316426 is a wasteful number, since it uses less digits than its factorization.

21048316426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45168296.

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 21048316426 in words is "twenty-one billion, forty-eight million, three hundred sixteen thousand, four hundred twenty-six".