211701315642 has 32 divisors (see below), whose sum is σ = 425455607808. Its totient is φ = 70225172976.

The previous prime is 211701315619. The next prime is 211701315659. The reversal of 211701315642 is 246513107112.

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 15 ways as a sum of consecutive naturals, for example, 3856963 + ... + 3911465.

It is an arithmetic number, because the mean of its divisors is an integer number (13295487744).

Almost surely, 2^211701315642 is an apocalyptic number.

211701315642 is an abundant number, since it is smaller than the sum of its proper divisors (213754292166).

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

211701315642 is a wasteful number, since it uses less digits than its factorization.

211701315642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57634.

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 211701315642 in words is "two hundred eleven billion, seven hundred one million, three hundred fifteen thousand, six hundred forty-two".