21326140204 has 6 divisors (see below), whose sum is σ = 37320745364. Its totient is φ = 10663070100.

The previous prime is 21326140193. The next prime is 21326140219. The reversal of 21326140204 is 40204162312.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2665767522 + ... + 2665767529.

Almost surely, 2^21326140204 is an apocalyptic number.

It is an amenable number.

21326140204 is a deficient number, since it is larger than the sum of its proper divisors (15994605160).

21326140204 is a wasteful number, since it uses less digits than its factorization.

21326140204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5331535055 (or 5331535053 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 21326140204 in words is "twenty-one billion, three hundred twenty-six million, one hundred forty thousand, two hundred four".