2643663462 has 16 divisors (see below), whose sum is σ = 5767993152. Its totient is φ = 801110120.

The previous prime is 2643663443. The next prime is 2643663469.

2643663462 is nontrivially palindromic in base 10.

2643663462 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643663469) 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, 20027688 + ... + 20027819.

It is an arithmetic number, because the mean of its divisors is an integer number (360499572).

Almost surely, 2^2643663462 is an apocalyptic number.

2643663462 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2643663462 is an abundant number, since it is smaller than the sum of its proper divisors (3124329690).

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

2643663462 is a wasteful number, since it uses less digits than its factorization.

2643663462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40055523.

The product of its digits is 746496, while the sum is 42.

The square root of 2643663462 is about 51416.5679718124. The cubic root of 2643663462 is about 1382.7236452893.

It can be divided in two parts, 26436 and 63462, that added together give a palindrome (89898).

The spelling of 2643663462 in words is "two billion, six hundred forty-three million, six hundred sixty-three thousand, four hundred sixty-two".