4661989597 has 4 divisors (see below), whose sum is σ = 4662142560. Its totient is φ = 4661836636.

The previous prime is 4661989571. The next prime is 4661989601. The reversal of 4661989597 is 7959891664.

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 4661989597 - 2¹⁵ = 4661956829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4661989697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13447 + ... + 97492.

It is an arithmetic number, because the mean of its divisors is an integer number (1165535640).

Almost surely, 2^4661989597 is an apocalyptic number.

It is an amenable number.

4661989597 is a deficient number, since it is larger than the sum of its proper divisors (152963).

4661989597 is a wasteful number, since it uses less digits than its factorization.

4661989597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152962.

The product of its digits is 29393280, while the sum is 64.

The square root of 4661989597 is about 68278.7638801407. The cubic root of 4661989597 is about 1670.5408501945.

The spelling of 4661989597 in words is "four billion, six hundred sixty-one million, nine hundred eighty-nine thousand, five hundred ninety-seven".