487249981641801 has 40 divisors (see below), whose sum is σ = 831858091525824. Its totient is φ = 278425281324960.

The previous prime is 487249981641763. The next prime is 487249981641821. The reversal of 487249981641801 is 108146189942784.

487249981641801 is a `hidden beast` number, since 4 + 8 + 7 + 2 + 499 + 8 + 16 + 41 + 80 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-487249981641801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 487249981641801.

It is not an unprimeable number, because it can be changed into a prime (487249981641821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 43528786 + ... + 53565428.

Almost surely, 2^{487249981641801} is an apocalyptic number.

It is an amenable number.

487249981641801 is a deficient number, since it is larger than the sum of its proper divisors (344608109884023).

487249981641801 is a wasteful number, since it uses less digits than its factorization.

487249981641801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10122283 (or 10122274 counting only the distinct ones).

The product of its (nonzero) digits is 222953472, while the sum is 72.

The spelling of 487249981641801 in words is "four hundred eighty-seven trillion, two hundred forty-nine billion, nine hundred eighty-one million, six hundred forty-one thousand, eight hundred one".