211413878988 has 48 divisors (see below), whose sum is σ = 548382084096. Its totient is φ = 62952022080.

The previous prime is 211413878983. The next prime is 211413879007. The reversal of 211413878988 is 889878314112.

It is not an unprimeable number, because it can be changed into a prime (211413878983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21853506 + ... + 21863177.

It is an arithmetic number, because the mean of its divisors is an integer number (11424626752).

Almost surely, 2^211413878988 is an apocalyptic number.

It is an amenable number.

211413878988 is an abundant number, since it is smaller than the sum of its proper divisors (336968205108).

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

211413878988 is a wasteful number, since it uses less digits than its factorization.

211413878988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43716734 (or 43716732 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 60.

The spelling of 211413878988 in words is "two hundred eleven billion, four hundred thirteen million, eight hundred seventy-eight thousand, nine hundred eighty-eight".