75040855685 has 8 divisors (see below), whose sum is σ = 91133955360. Its totient is φ = 59309398864.

The previous prime is 75040855667. The next prime is 75040855727. The reversal of 75040855685 is 58655804057.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75040855685 is a prime.

It is a super-2 number, since 2×75040855685² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90410255 + ... + 90411084.

It is an arithmetic number, because the mean of its divisors is an integer number (11391744420).

Almost surely, 2^75040855685 is an apocalyptic number.

It is an amenable number.

75040855685 is a deficient number, since it is larger than the sum of its proper divisors (16093099675).

75040855685 is a wasteful number, since it uses less digits than its factorization.

75040855685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180821427.

The product of its (nonzero) digits is 6720000, while the sum is 53.

The spelling of 75040855685 in words is "seventy-five billion, forty million, eight hundred fifty-five thousand, six hundred eighty-five".