1085837084639 has 16 divisors (see below), whose sum is σ = 1144604260800. Its totient is φ = 1028496059136.

The previous prime is 1085837084627. The next prime is 1085837084663. The reversal of 1085837084639 is 9364807385801.

It is a cyclic number.

It is not a de Polignac number, because 1085837084639 - 2¹² = 1085837080543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085837084699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15348542 + ... + 15419124.

It is an arithmetic number, because the mean of its divisors is an integer number (71537766300).

Almost surely, 2^{1085837084639} is an apocalyptic number.

1085837084639 is a deficient number, since it is larger than the sum of its proper divisors (58767176161).

1085837084639 is a wasteful number, since it uses less digits than its factorization.

1085837084639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80674.

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 1085837084639 in words is "one trillion, eighty-five billion, eight hundred thirty-seven million, eighty-four thousand, six hundred thirty-nine".