69091012 has 12 divisors (see below), whose sum is σ = 123190956. Its totient is φ = 33893600.

The previous prime is 69091007. The next prime is 69091019. The reversal of 69091012 is 21019096.

It can be written as a sum of positive squares in 2 ways, for example, as 24147396 + 44943616 = 4914^2 + 6704^2 .

It is not an unprimeable number, because it can be changed into a prime (69091019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162739 + ... + 163162.

It is an arithmetic number, because the mean of its divisors is an integer number (10265913).

Almost surely, 2^69091012 is an apocalyptic number.

It is an amenable number.

69091012 is a deficient number, since it is larger than the sum of its proper divisors (54099944).

69091012 is a wasteful number, since it uses less digits than its factorization.

69091012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325958 (or 325956 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 69091012 is about 8312.1003362568. The cubic root of 69091012 is about 410.3368479040.

It can be divided in two parts, 6909 and 1012, that added together give a square (7921 = 89²).

The spelling of 69091012 in words is "sixty-nine million, ninety-one thousand, twelve".