487881404091 has 40 divisors (see below), whose sum is σ = 775722334464. Its totient is φ = 304518769920.

The previous prime is 487881404077. The next prime is 487881404107. The reversal of 487881404091 is 190404188784.

487881404091 is a `hidden beast` number, since 4 + 8 + 78 + 81 + 404 + 0 + 91 = 666.

It is not a de Polignac number, because 487881404091 - 2¹⁹ = 487880879803 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (487881404891) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 664500 + ... + 1190513.

Almost surely, 2^487881404091 is an apocalyptic number.

487881404091 is a deficient number, since it is larger than the sum of its proper divisors (287840930373).

487881404091 is a wasteful number, since it uses less digits than its factorization.

487881404091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855233 (or 1855224 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 54.

The spelling of 487881404091 in words is "four hundred eighty-seven billion, eight hundred eighty-one million, four hundred four thousand, ninety-one".