1585084540988 has 12 divisors (see below), whose sum is σ = 2987274711960. Its totient is φ = 731577480432.

The previous prime is 1585084540987. The next prime is 1585084541017. The reversal of 1585084540988 is 8890454805851.

It is a super-2 number, since 2×1585084540988² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1585084540987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15241197458 + ... + 15241197561.

It is an arithmetic number, because the mean of its divisors is an integer number (248939559330).

Almost surely, 2^{1585084540988} is an apocalyptic number.

It is an amenable number.

1585084540988 is a deficient number, since it is larger than the sum of its proper divisors (1402190170972).

1585084540988 is a wasteful number, since it uses less digits than its factorization.

1585084540988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30482395036 (or 30482395034 counting only the distinct ones).

The product of its (nonzero) digits is 73728000, while the sum is 65.

The spelling of 1585084540988 in words is "one trillion, five hundred eighty-five billion, eighty-four million, five hundred forty thousand, nine hundred eighty-eight".