487121323840 has 224 divisors, whose sum is σ = 1275551570304. Its totient is φ = 176442900480.

The previous prime is 487121323807. The next prime is 487121323849. The reversal of 487121323840 is 48323121784.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487121323849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15657100 + ... + 15688180.

Almost surely, 2^487121323840 is an apocalyptic number.

487121323840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 487121323840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (637775785152).

487121323840 is an abundant number, since it is smaller than the sum of its proper divisors (788430246464).

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

487121323840 is a wasteful number, since it uses less digits than its factorization.

487121323840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31225 (or 31215 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The spelling of 487121323840 in words is "four hundred eighty-seven billion, one hundred twenty-one million, three hundred twenty-three thousand, eight hundred forty".