487661890617 has 12 divisors (see below), whose sum is σ = 768436918704. Its totient is φ = 295552660920.

The previous prime is 487661890601. The next prime is 487661890633. The reversal of 487661890617 is 716098166784.

487661890617 is a `hidden beast` number, since 4 + 8 + 7 + 6 + 6 + 1 + 8 + 9 + 0 + 617 = 666.

It is an interprime number because it is at equal distance from previous prime (487661890601) and next prime (487661890633).

It is not a de Polignac number, because 487661890617 - 2⁴ = 487661890601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (487661890657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2462938743 + ... + 2462938940.

It is an arithmetic number, because the mean of its divisors is an integer number (64036409892).

Almost surely, 2^487661890617 is an apocalyptic number.

It is an amenable number.

487661890617 is a deficient number, since it is larger than the sum of its proper divisors (280775028087).

487661890617 is a wasteful number, since it uses less digits than its factorization.

487661890617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4925877700 (or 4925877697 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 63.

The spelling of 487661890617 in words is "four hundred eighty-seven billion, six hundred sixty-one million, eight hundred ninety thousand, six hundred seventeen".