211941290643486 has 16 divisors (see below), whose sum is σ = 424918969021200. Its totient is φ = 70474365592128.

The previous prime is 211941290643457. The next prime is 211941290643487. The reversal of 211941290643486 is 684346092149112.

It is a super-2 number, since 2×211941290643486² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211941290643487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43182819601 + ... + 43182824508.

It is an arithmetic number, because the mean of its divisors is an integer number (26557435563825).

Almost surely, 2^{211941290643486} is an apocalyptic number.

211941290643486 is an abundant number, since it is smaller than the sum of its proper divisors (212977678377714).

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

211941290643486 is a wasteful number, since it uses less digits than its factorization.

211941290643486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86365644523.

The product of its (nonzero) digits is 17915904, while the sum is 60.

The spelling of 211941290643486 in words is "two hundred eleven trillion, nine hundred forty-one billion, two hundred ninety million, six hundred forty-three thousand, four hundred eighty-six".