75810609901 has 4 divisors (see below), whose sum is σ = 81642195292. Its totient is φ = 69979024512.

The previous prime is 75810609883. The next prime is 75810609923. The reversal of 75810609901 is 10990601857.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10990601857 = 52859 ⋅207923.

It can be written as a sum of positive squares in 2 ways, for example, as 39662714025 + 36147895876 = 199155^2 + 190126^2 .

It is a cyclic number.

It is not a de Polignac number, because 75810609901 - 2⁹ = 75810609389 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 (75810609991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2915792676 + ... + 2915792701.

It is an arithmetic number, because the mean of its divisors is an integer number (20410548823).

Almost surely, 2^75810609901 is an apocalyptic number.

It is an amenable number.

75810609901 is a deficient number, since it is larger than the sum of its proper divisors (5831585391).

75810609901 is a wasteful number, since it uses less digits than its factorization.

75810609901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5831585390.

The product of its (nonzero) digits is 136080, while the sum is 46.

The spelling of 75810609901 in words is "seventy-five billion, eight hundred ten million, six hundred nine thousand, nine hundred one".