1085347885644 has 72 divisors (see below), whose sum is σ = 2993981914560. Its totient is φ = 328777596000.

The previous prime is 1085347885619. The next prime is 1085347885679. The reversal of 1085347885644 is 4465887435801.

1085347885644 is a `hidden beast` number, since 1 + 0 + 8 + 534 + 7 + 8 + 8 + 56 + 44 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 648327 + ... + 1609665.

Almost surely, 2^{1085347885644} is an apocalyptic number.

It is an amenable number.

1085347885644 is an abundant number, since it is smaller than the sum of its proper divisors (1908634028916).

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

1085347885644 is a wasteful number, since it uses less digits than its factorization.

1085347885644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964211 (or 964206 counting only the distinct ones).

The product of its (nonzero) digits is 103219200, while the sum is 63.

The spelling of 1085347885644 in words is "one trillion, eighty-five billion, three hundred forty-seven million, eight hundred eighty-five thousand, six hundred forty-four".