4645641294 has 144 divisors (see below), whose sum is σ = 12062531520. Its totient is φ = 1287861120.

The previous prime is 4645641271. The next prime is 4645641337. The reversal of 4645641294 is 4921465464.

4645641294 is a `hidden beast` number, since 4 + 64 + 564 + 1 + 29 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4249812 + ... + 4250904.

It is an arithmetic number, because the mean of its divisors is an integer number (83767580).

Almost surely, 2^4645641294 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4645641294, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6031265760).

4645641294 is an abundant number, since it is smaller than the sum of its proper divisors (7416890226).

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

4645641294 is a wasteful number, since it uses less digits than its factorization.

4645641294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255 (or 1245 counting only the distinct ones).

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

The square root of 4645641294 is about 68158.9414090330. The cubic root of 4645641294 is about 1668.5858555712.

The spelling of 4645641294 in words is "four billion, six hundred forty-five million, six hundred forty-one thousand, two hundred ninety-four".