75859945969 has 2 divisors, whose sum is σ = 75859945970. Its totient is φ = 75859945968.

The previous prime is 75859945939. The next prime is 75859945981. The reversal of 75859945969 is 96954995857.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52137785569 + 23722160400 = 228337^2 + 154020^2 .

It is a cyclic number.

It is not a de Polignac number, because 75859945969 - 2¹¹ = 75859943921 is a prime.

It is a super-2 number, since 2×75859945969² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75859945895 and 75859945904.

It is not a weakly prime, because it can be changed into another prime (75859945919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37929972984 + 37929972985.

It is an arithmetic number, because the mean of its divisors is an integer number (37929972985).

Almost surely, 2^75859945969 is an apocalyptic number.

It is an amenable number.

75859945969 is a deficient number, since it is larger than the sum of its proper divisors (1).

75859945969 is an equidigital number, since it uses as much as digits as its factorization.

75859945969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1102248000, while the sum is 76.

The spelling of 75859945969 in words is "seventy-five billion, eight hundred fifty-nine million, nine hundred forty-five thousand, nine hundred sixty-nine".