4491547950 has 144 divisors (see below), whose sum is σ = 11691037440. Its totient is φ = 1140652800.

The previous prime is 4491547937. The next prime is 4491547961. The reversal of 4491547950 is 597451944.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4491547950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 11850861 + ... + 11851239.

It is an arithmetic number, because the mean of its divisors is an integer number (81187760).

Almost surely, 2^4491547950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4491547950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5845518720).

4491547950 is an abundant number, since it is smaller than the sum of its proper divisors (7199489490).

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

4491547950 is a wasteful number, since it uses less digits than its factorization.

4491547950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 48.

The square root of 4491547950 is about 67019.0118548461. The cubic root of 4491547950 is about 1649.9293450002.

The spelling of 4491547950 in words is "four billion, four hundred ninety-one million, five hundred forty-seven thousand, nine hundred fifty".