21372327026 has 8 divisors (see below), whose sum is σ = 33163955820. Its totient is φ = 10317675088.

The previous prime is 21372327017. The next prime is 21372327047. The reversal of 21372327026 is 62072327312.

It can be written as a sum of positive squares in 2 ways, for example, as 21352515625 + 19811401 = 146125^2 + 4451^2 .

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, 184244141 + ... + 184244256.

Almost surely, 2^21372327026 is an apocalyptic number.

21372327026 is a deficient number, since it is larger than the sum of its proper divisors (11791628794).

21372327026 is a wasteful number, since it uses less digits than its factorization.

21372327026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368488428.

The product of its (nonzero) digits is 42336, while the sum is 35.

The spelling of 21372327026 in words is "twenty-one billion, three hundred seventy-two million, three hundred twenty-seven thousand, twenty-six".