4661404989 has 4 divisors (see below), whose sum is σ = 6215206656. Its totient is φ = 3107603324.

The previous prime is 4661404921. The next prime is 4661404991. The reversal of 4661404989 is 9894041664.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4661404989 - 2¹² = 4661400893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4661404589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 776900829 + ... + 776900834.

It is an arithmetic number, because the mean of its divisors is an integer number (1553801664).

Almost surely, 2^4661404989 is an apocalyptic number.

It is an amenable number.

4661404989 is a deficient number, since it is larger than the sum of its proper divisors (1553801667).

4661404989 is a wasteful number, since it uses less digits than its factorization.

4661404989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553801666.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 4661404989 is about 68274.4827076705. The cubic root of 4661404989 is about 1670.4710193243.

The spelling of 4661404989 in words is "four billion, six hundred sixty-one million, four hundred four thousand, nine hundred eighty-nine".