5138624466 has 24 divisors (see below), whose sum is σ = 11160924060. Its totient is φ = 1708684416.

The previous prime is 5138624453. The next prime is 5138624467. The reversal of 5138624466 is 6644268315.

5138624466 is a `hidden beast` number, since 5 + 13 + 8 + 624 + 4 + 6 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5065880625 + 72743841 = 71175^2 + 8529^2 .

It is a super-2 number, since 2×5138624466² = 52810922805147570312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5138624467) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 341635 + ... + 356358.

Almost surely, 2^5138624466 is an apocalyptic number.

5138624466 is an abundant number, since it is smaller than the sum of its proper divisors (6022299594).

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

5138624466 is a wasteful number, since it uses less digits than its factorization.

5138624466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698410 (or 698407 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 5138624466 is about 71684.1995561086. The cubic root of 5138624466 is about 1725.6350770620.

The spelling of 5138624466 in words is "five billion, one hundred thirty-eight million, six hundred twenty-four thousand, four hundred sixty-six".