2646257412 has 12 divisors (see below), whose sum is σ = 6174600656. Its totient is φ = 882085800.

The previous prime is 2646257407. The next prime is 2646257413. The reversal of 2646257412 is 2147526462.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2646257413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110260714 + ... + 110260737.

Almost surely, 2^2646257412 is an apocalyptic number.

It is an amenable number.

2646257412 is an abundant number, since it is smaller than the sum of its proper divisors (3528343244).

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

2646257412 is a wasteful number, since it uses less digits than its factorization.

2646257412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220521458 (or 220521456 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 2646257412 is about 51441.7866330477. The cubic root of 2646257412 is about 1383.1757380765.

The spelling of 2646257412 in words is "two billion, six hundred forty-six million, two hundred fifty-seven thousand, four hundred twelve".