4541721690 has 96 divisors (see below), whose sum is σ = 12004090560. Its totient is φ = 1098915840.

The previous prime is 4541721671. The next prime is 4541721707. The reversal of 4541721690 is 961271454.

It is a super-2 number, since 2×4541721690² = 41254471818832912200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2790657 + ... + 2792283.

It is an arithmetic number, because the mean of its divisors is an integer number (125042610).

Almost surely, 2^4541721690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4541721690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6002045280).

4541721690 is an abundant number, since it is smaller than the sum of its proper divisors (7462368870).

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

4541721690 is a wasteful number, since it uses less digits than its factorization.

4541721690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428 (or 2417 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 4541721690 is about 67392.2969633771. The cubic root of 4541721690 is about 1656.0502322915.

The spelling of 4541721690 in words is "four billion, five hundred forty-one million, seven hundred twenty-one thousand, six hundred ninety".