4085090947840 has 144 divisors (see below), whose sum is σ = 11840756703552. Its totient is φ = 1318214172672.

The previous prime is 4085090947831. The next prime is 4085090947897. The reversal of 4085090947840 is 487490905804.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13257249 + ... + 13561888.

It is an arithmetic number, because the mean of its divisors is an integer number (82227477108).

Almost surely, 2^{4085090947840} is an apocalyptic number.

4085090947840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4085090947840 is an abundant number, since it is smaller than the sum of its proper divisors (7755665755712).

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

4085090947840 is a wasteful number, since it uses less digits than its factorization.

4085090947840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26819182 (or 26819168 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 4085090947840 in words is "four trillion, eighty-five billion, ninety million, nine hundred forty-seven thousand, eight hundred forty".