19426939313896 has 32 divisors (see below), whose sum is σ = 36942043783680. Its totient is φ = 9575753544000.

The previous prime is 19426939313827. The next prime is 19426939314019. The reversal of 19426939313896 is 69831393962491.

It is a super-2 number, since 2×19426939313896² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4405321 + ... + 7632871.

It is an arithmetic number, because the mean of its divisors is an integer number (1154438868240).

Almost surely, 2^{19426939313896} is an apocalyptic number.

It is an amenable number.

19426939313896 is a deficient number, since it is larger than the sum of its proper divisors (17515104469784).

19426939313896 is a wasteful number, since it uses less digits than its factorization.

19426939313896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3238225 (or 3238221 counting only the distinct ones).

The product of its digits is 408146688, while the sum is 73.

The spelling of 19426939313896 in words is "nineteen trillion, four hundred twenty-six billion, nine hundred thirty-nine million, three hundred thirteen thousand, eight hundred ninety-six".