4644863958 has 48 divisors (see below), whose sum is σ = 10829306880. Its totient is φ = 1324293264.

The previous prime is 4644863957. The next prime is 4644864017. The reversal of 4644863958 is 8593684464.

It is a super-2 number, since 2×4644863958² = 43149522376654851528, which contains 22 as substring.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 4644863898 and 4644863907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4644863957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124335 + ... + 157317.

It is an arithmetic number, because the mean of its divisors is an integer number (225610560).

Almost surely, 2^4644863958 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4644863958, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5414653440).

4644863958 is an abundant number, since it is smaller than the sum of its proper divisors (6184442922).

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

4644863958 is a wasteful number, since it uses less digits than its factorization.

4644863958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33481 (or 33474 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 57.

The square root of 4644863958 is about 68153.2387931784. The cubic root of 4644863958 is about 1668.4927845165.

The spelling of 4644863958 in words is "four billion, six hundred forty-four million, eight hundred sixty-three thousand, nine hundred fifty-eight".