21173526322 has 12 divisors (see below), whose sum is σ = 34391319930. Its totient is φ = 9772396608.

The previous prime is 21173526301. The next prime is 21173526331. The reversal of 21173526322 is 22362537112.

It can be written as a sum of positive squares in 3 ways, for example, as 6309283761 + 14864242561 = 79431^2 + 121919^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31321447 + ... + 31322122.

Almost surely, 2^21173526322 is an apocalyptic number.

21173526322 is a deficient number, since it is larger than the sum of its proper divisors (13217793608).

21173526322 is a wasteful number, since it uses less digits than its factorization.

21173526322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62643597 (or 62643584 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The spelling of 21173526322 in words is "twenty-one billion, one hundred seventy-three million, five hundred twenty-six thousand, three hundred twenty-two".