5207664444 has 48 divisors (see below), whose sum is σ = 12653598720. Its totient is φ = 1664913600.

The previous prime is 5207664379. The next prime is 5207664461. The reversal of 5207664444 is 4444667025.

It is a super-2 number, since 2×5207664444² = 54239537922603658272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5207664396 and 5207664405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2997 + ... + 102099.

It is an arithmetic number, because the mean of its divisors is an integer number (263616640).

Almost surely, 2^5207664444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5207664444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6326799360).

5207664444 is an abundant number, since it is smaller than the sum of its proper divisors (7445934276).

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

5207664444 is a wasteful number, since it uses less digits than its factorization.

5207664444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99290 (or 99288 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 42.

The square root of 5207664444 is about 72164.1492986649. The cubic root of 5207664444 is about 1733.3289775860.

The spelling of 5207664444 in words is "five billion, two hundred seven million, six hundred sixty-four thousand, four hundred forty-four".