461989603509 has 8 divisors (see below), whose sum is σ = 703984157760. Its totient is φ = 263994059136.

The previous prime is 461989603393. The next prime is 461989603511. The reversal of 461989603509 is 905306989164.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 461989603509 - 2⁸ = 461989603253 is a prime.

It is a super-2 number, since 2×461989603509² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461989623509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10999752444 + ... + 10999752485.

It is an arithmetic number, because the mean of its divisors is an integer number (87998019720).

Almost surely, 2^461989603509 is an apocalyptic number.

It is an amenable number.

461989603509 is a deficient number, since it is larger than the sum of its proper divisors (241994554251).

461989603509 is a wasteful number, since it uses less digits than its factorization.

461989603509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21999504939.

The product of its (nonzero) digits is 12597120, while the sum is 60.

The spelling of 461989603509 in words is "four hundred sixty-one billion, nine hundred eighty-nine million, six hundred three thousand, five hundred nine".