212636153464 has 48 divisors (see below), whose sum is σ = 467325947880. Its totient is φ = 90434111040.

The previous prime is 212636153447. The next prime is 212636153537. The reversal of 212636153464 is 464351636212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 212636153464.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2019027 + ... + 2121730.

Almost surely, 2^212636153464 is an apocalyptic number.

It is an amenable number.

212636153464 is an abundant number, since it is smaller than the sum of its proper divisors (254689794416).

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

212636153464 is a wasteful number, since it uses less digits than its factorization.

212636153464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4140908 (or 4140897 counting only the distinct ones).

The product of its digits is 622080, while the sum is 43.

Adding to 212636153464 its reverse (464351636212), we get a palindrome (676987789676).

The spelling of 212636153464 in words is "two hundred twelve billion, six hundred thirty-six million, one hundred fifty-three thousand, four hundred sixty-four".