485267660640 has 384 divisors, whose sum is σ = 1946975063040. Its totient is φ = 110580940800.

The previous prime is 485267660639. The next prime is 485267660671. The reversal of 485267660640 is 46066762584.

485267660640 is a `hidden beast` number, since 4 + 8 + 5 + 26 + 7 + 6 + 606 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9985200 + ... + 10033680.

It is an arithmetic number, because the mean of its divisors is an integer number (5070247560).

Almost surely, 2^485267660640 is an apocalyptic number.

485267660640 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 485267660640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (973487531520).

485267660640 is an abundant number, since it is smaller than the sum of its proper divisors (1461707402400).

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

485267660640 is a wasteful number, since it uses less digits than its factorization.

485267660640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48843 (or 48829 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 54.

The spelling of 485267660640 in words is "four hundred eighty-five billion, two hundred sixty-seven million, six hundred sixty thousand, six hundred forty".