21436471695308 has 48 divisors (see below), whose sum is σ = 38095124981760. Its totient is φ = 10552679190144.

The previous prime is 21436471695257. The next prime is 21436471695347. The reversal of 21436471695308 is 80359617463412.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 904977041 + ... + 905000727.

It is an arithmetic number, because the mean of its divisors is an integer number (793648437120).

It is a 1-persistent number, because it is pandigital, but 2⋅21436471695308 = 42872943390616 is not.

Almost surely, 2^{21436471695308} is an apocalyptic number.

It is an amenable number.

21436471695308 is a deficient number, since it is larger than the sum of its proper divisors (16658653286452).

21436471695308 is a wasteful number, since it uses less digits than its factorization.

21436471695308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29126 (or 29124 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 59.

The spelling of 21436471695308 in words is "twenty-one trillion, four hundred thirty-six billion, four hundred seventy-one million, six hundred ninety-five thousand, three hundred eight".