487641881664 has 560 divisors, whose sum is σ = 1698729648000. Its totient is φ = 138253796352.

The previous prime is 487641881663. The next prime is 487641881677. The reversal of 487641881664 is 466188146784.

487641881664 is a `hidden beast` number, since 4 + 87 + 6 + 418 + 81 + 6 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (487641881663) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 247156582 + ... + 247158554.

It is an arithmetic number, because the mean of its divisors is an integer number (3033445800).

Almost surely, 2^487641881664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 487641881664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (849364824000).

487641881664 is an abundant number, since it is smaller than the sum of its proper divisors (1211087766336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

487641881664 is a wasteful number, since it uses less digits than its factorization.

487641881664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157 (or 2124 counting only the distinct ones).

The product of its digits is 49545216, while the sum is 63.

The spelling of 487641881664 in words is "four hundred eighty-seven billion, six hundred forty-one million, eight hundred eighty-one thousand, six hundred sixty-four".