211454011404 has 48 divisors (see below), whose sum is σ = 548271897600. Its totient is φ = 70477239888.

The previous prime is 211454011399. The next prime is 211454011421. The reversal of 211454011404 is 404110454112.

It is a happy number.

211454011404 is a `hidden beast` number, since 2 + 1 + 1 + 4 + 540 + 114 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 978217 + ... + 1174655.

It is an arithmetic number, because the mean of its divisors is an integer number (11422331200).

Almost surely, 2^211454011404 is an apocalyptic number.

It is an amenable number.

211454011404 is an abundant number, since it is smaller than the sum of its proper divisors (336817886196).

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

211454011404 is a wasteful number, since it uses less digits than its factorization.

211454011404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206419 (or 206411 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

Adding to 211454011404 its reverse (404110454112), we get a palindrome (615564465516).

The spelling of 211454011404 in words is "two hundred eleven billion, four hundred fifty-four million, eleven thousand, four hundred four".