489651156984 has 128 divisors (see below), whose sum is σ = 1362285550080. Its totient is φ = 145422950400.

The previous prime is 489651156983. The next prime is 489651156989.

It is a happy number.

489651156984 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489651156983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2544804 + ... + 2730444.

It is an arithmetic number, because the mean of its divisors is an integer number (10642855860).

Almost surely, 2^489651156984 is an apocalyptic number.

489651156984 is a gapful number since it is divisible by the number (44) 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 489651156984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (681142775040).

489651156984 is an abundant number, since it is smaller than the sum of its proper divisors (872634393096).

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

489651156984 is a wasteful number, since it uses less digits than its factorization.

489651156984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185861 (or 185857 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 66.

The spelling of 489651156984 in words is "four hundred eighty-nine billion, six hundred fifty-one million, one hundred fifty-six thousand, nine hundred eighty-four".