211946350028 has 24 divisors (see below), whose sum is σ = 426493277952. Its totient is φ = 90276883344.

The previous prime is 211946349997. The next prime is 211946350051. The reversal of 211946350028 is 820053649112.

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, 23214800 + ... + 23223927.

It is an arithmetic number, because the mean of its divisors is an integer number (17770553248).

Almost surely, 2^211946350028 is an apocalyptic number.

211946350028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

211946350028 is an abundant number, since it is smaller than the sum of its proper divisors (214546927924).

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

211946350028 is a wasteful number, since it uses less digits than its factorization.

211946350028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46438901 (or 46438899 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 211946350028 in words is "two hundred eleven billion, nine hundred forty-six million, three hundred fifty thousand, twenty-eight".