42585751085 has 12 divisors (see below), whose sum is σ = 53421372732. Its totient is φ = 32587355328.

The previous prime is 42585751079. The next prime is 42585751093. The reversal of 42585751085 is 58015758524.

It can be written as a sum of positive squares in 2 ways, for example, as 29931076036 + 12654675049 = 173006^2 + 112493^2 .

It is not a de Polignac number, because 42585751085 - 2¹⁴ = 42585734701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8047592 + ... + 8052881.

It is an arithmetic number, because the mean of its divisors is an integer number (4451781061).

Almost surely, 2^42585751085 is an apocalyptic number.

It is an amenable number.

42585751085 is a deficient number, since it is larger than the sum of its proper divisors (10835621647).

42585751085 is a wasteful number, since it uses less digits than its factorization.

42585751085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16100524 (or 16100501 counting only the distinct ones).

The product of its (nonzero) digits is 2240000, while the sum is 50.

The spelling of 42585751085 in words is "forty-two billion, five hundred eighty-five million, seven hundred fifty-one thousand, eighty-five".