211431426416 has 20 divisors (see below), whose sum is σ = 468169587312. Its totient is φ = 90613468416.

The previous prime is 211431426407. The next prime is 211431426421. The reversal of 211431426416 is 614624134112.

It is a congruent 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 in 3 ways as a sum of consecutive naturals, for example, 943890185 + ... + 943890408.

Almost surely, 2^211431426416 is an apocalyptic number.

It is an amenable number.

211431426416 is an abundant number, since it is smaller than the sum of its proper divisors (256738160896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211431426416 is a wasteful number, since it uses less digits than its factorization.

211431426416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887780608 (or 1887780602 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The spelling of 211431426416 in words is "two hundred eleven billion, four hundred thirty-one million, four hundred twenty-six thousand, four hundred sixteen".