485811688880 has 80 divisors (see below), whose sum is σ = 1298003214144. Its totient is φ = 165643729920.

The previous prime is 485811688877. The next prime is 485811688897. The reversal of 485811688880 is 88886118584.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2295107 + ... + 2497826.

Almost surely, 2^485811688880 is an apocalyptic number.

485811688880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

485811688880 is an abundant number, since it is smaller than the sum of its proper divisors (812191525264).

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

485811688880 is a wasteful number, since it uses less digits than its factorization.

485811688880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4793134 (or 4793128 counting only the distinct ones).

The product of its (nonzero) digits is 31457280, while the sum is 65.

The spelling of 485811688880 in words is "four hundred eighty-five billion, eight hundred eleven million, six hundred eighty-eight thousand, eight hundred eighty".