4645550644 has 36 divisors (see below), whose sum is σ = 9462644100. Its totient is φ = 1989765120.

The previous prime is 4645550639. The next prime is 4645550669. The reversal of 4645550644 is 4460555464.

It can be written as a sum of positive squares in 2 ways, for example, as 2435422500 + 2210128144 = 49350^2 + 47012^2 .

It is a super-2 number, since 2×4645550644² = 43162281571937629472, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 4645550644.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 375924 + ... + 388084.

It is an arithmetic number, because the mean of its divisors is an integer number (262851225).

Almost surely, 2^4645550644 is an apocalyptic number.

It is an amenable number.

4645550644 is an abundant number, since it is smaller than the sum of its proper divisors (4817093456).

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

4645550644 is a wasteful number, since it uses less digits than its factorization.

4645550644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14128 (or 14119 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 43.

The square root of 4645550644 is about 68158.2764160010. The cubic root of 4645550644 is about 1668.5750025097.

The spelling of 4645550644 in words is "four billion, six hundred forty-five million, five hundred fifty thousand, six hundred forty-four".