4651146440 has 64 divisors (see below), whose sum is σ = 11030353200. Its totient is φ = 1762388992.

The previous prime is 4651146431. The next prime is 4651146443. The reversal of 4651146440 is 446411564.

It can be written as a sum of positive squares in 8 ways, for example, as 2714618404 + 1936528036 = 52102^2 + 44006^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4651146440.

It is not an unprimeable number, because it can be changed into a prime (4651146443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23654 + ... + 99306.

Almost surely, 2^4651146440 is an apocalyptic number.

4651146440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4651146440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5515176600).

4651146440 is an abundant number, since it is smaller than the sum of its proper divisors (6379206760).

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

4651146440 is a wasteful number, since it uses less digits than its factorization.

4651146440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75746 (or 75742 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 4651146440 is about 68199.3140727969. The cubic root of 4651146440 is about 1669.2446941197.

The spelling of 4651146440 in words is "four billion, six hundred fifty-one million, one hundred forty-six thousand, four hundred forty".