69081128 has 8 divisors (see below), whose sum is σ = 129527130. Its totient is φ = 34540560.

The previous prime is 69081127. The next prime is 69081137. The reversal of 69081128 is 82118096.

It can be written as a sum of positive squares in only one way, i.e., 57123364 + 11957764 = 7558^2 + 3458^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (69081127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4317563 + ... + 4317578.

Almost surely, 2^69081128 is an apocalyptic number.

It is an amenable number.

69081128 is a deficient number, since it is larger than the sum of its proper divisors (60446002).

69081128 is a wasteful number, since it uses less digits than its factorization.

69081128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8635147 (or 8635143 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 69081128 is about 8311.5057600894. The cubic root of 69081128 is about 410.3172796914.

It can be divided in two parts, 690 and 81128, that added together give a palindrome (81818).

The spelling of 69081128 in words is "sixty-nine million, eighty-one thousand, one hundred twenty-eight".