75074806865 has 8 divisors (see below), whose sum is σ = 90310039080. Its totient is φ = 59912998272.

The previous prime is 75074806861. The next prime is 75074806871. The reversal of 75074806865 is 56860847057.

It can be written as a sum of positive squares in 4 ways, for example, as 4497445969 + 70577360896 = 67063^2 + 265664^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 75074806865 - 2² = 75074806861 is a prime.

It is a super-2 number, since 2×75074806865² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 75074806865.

It is not an unprimeable number, because it can be changed into a prime (75074806861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18353654 + ... + 18357743.

It is an arithmetic number, because the mean of its divisors is an integer number (11288754885).

Almost surely, 2^75074806865 is an apocalyptic number.

It is an amenable number.

75074806865 is a deficient number, since it is larger than the sum of its proper divisors (15235232215).

75074806865 is a wasteful number, since it uses less digits than its factorization.

75074806865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36711811.

The product of its (nonzero) digits is 11289600, while the sum is 56.

The spelling of 75074806865 in words is "seventy-five billion, seventy-four million, eight hundred six thousand, eight hundred sixty-five".