75000000069 has 24 divisors (see below), whose sum is σ = 109480257432. Its totient is φ = 49470935040.

The previous prime is 75000000043. The next prime is 75000000083. The reversal of 75000000069 is 96000000057.

It can be written as a sum of positive squares in 4 ways, for example, as 48978116100 + 26021883969 = 221310^2 + 161313^2 .

It is not a de Polignac number, because 75000000069 - 2¹⁶ = 74999934533 is a prime.

It is a super-2 number, since 2×75000000069² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74999999979 and 75000000051.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75000000469) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3912829 + ... + 3931949.

It is an arithmetic number, because the mean of its divisors is an integer number (4561677393).

Almost surely, 2^75000000069 is an apocalyptic number.

It is an amenable number.

75000000069 is a deficient number, since it is larger than the sum of its proper divisors (34480257363).

75000000069 is a wasteful number, since it uses less digits than its factorization.

75000000069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23717 (or 23714 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The spelling of 75000000069 in words is "seventy-five billion, sixty-nine", and thus it is an aban number and an uban number.