75772333109 has 6 divisors (see below), whose sum is σ = 83286944790. Its totient is φ = 68883939080.

The previous prime is 75772333099. The next prime is 75772333171. The reversal of 75772333109 is 90133327757.

It can be written as a sum of positive squares in only one way, i.e., 71314100209 + 4458232900 = 267047^2 + 66770^2 .

It is not a de Polignac number, because 75772333109 - 2⁴ = 75772333093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75772333199) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 313108694 + ... + 313108935.

It is an arithmetic number, because the mean of its divisors is an integer number (13881157465).

Almost surely, 2^75772333109 is an apocalyptic number.

It is an amenable number.

75772333109 is a deficient number, since it is larger than the sum of its proper divisors (7514611681).

75772333109 is a wasteful number, since it uses less digits than its factorization.

75772333109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626217651 (or 626217640 counting only the distinct ones).

The product of its (nonzero) digits is 833490, while the sum is 47.

The spelling of 75772333109 in words is "seventy-five billion, seven hundred seventy-two million, three hundred thirty-three thousand, one hundred nine".