211075191964 has 48 divisors (see below), whose sum is σ = 457412720128. Its totient is φ = 82989966528.

The previous prime is 211075191907. The next prime is 211075191997. The reversal of 211075191964 is 469191570112.

It is a congruent number.

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, 1719432 + ... + 1838095.

Almost surely, 2^211075191964 is an apocalyptic number.

It is an amenable number.

211075191964 is an abundant number, since it is smaller than the sum of its proper divisors (246337528164).

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

211075191964 is a wasteful number, since it uses less digits than its factorization.

211075191964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3557714 (or 3557712 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 46.

The spelling of 211075191964 in words is "two hundred eleven billion, seventy-five million, one hundred ninety-one thousand, nine hundred sixty-four".