211964249802 has 16 divisors (see below), whose sum is σ = 423945345600. Its totient is φ = 70651942272.

The previous prime is 211964249771. The next prime is 211964249843. The reversal of 211964249802 is 208942469112.

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, 535302 + ... + 842897.

It is an arithmetic number, because the mean of its divisors is an integer number (26496584100).

Almost surely, 2^211964249802 is an apocalyptic number.

211964249802 is an abundant number, since it is smaller than the sum of its proper divisors (211981095798).

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

211964249802 is a wasteful number, since it uses less digits than its factorization.

211964249802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403837.

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 211964249802 in words is "two hundred eleven billion, nine hundred sixty-four million, two hundred forty-nine thousand, eight hundred two".