2126212464 has 40 divisors (see below), whose sum is σ = 5494469760. Its totient is φ = 708511168.

The previous prime is 2126212447. The next prime is 2126212471. The reversal of 2126212464 is 4642126212.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 219859 + ... + 229325.

It is an arithmetic number, because the mean of its divisors is an integer number (137361744).

Almost surely, 2^2126212464 is an apocalyptic number.

2126212464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2126212464 is an abundant number, since it is smaller than the sum of its proper divisors (3368257296).

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

2126212464 is a wasteful number, since it uses less digits than its factorization.

2126212464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14157 (or 14151 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 2126212464 is about 46110.8714296314. The cubic root of 2126212464 is about 1285.8852654166.

Adding to 2126212464 its reverse (4642126212), we get a palindrome (6768338676).

The spelling of 2126212464 in words is "two billion, one hundred twenty-six million, two hundred twelve thousand, four hundred sixty-four".