69721804036 has 12 divisors (see below), whose sum is σ = 122252872140. Its totient is φ = 34792412000.

The previous prime is 69721804001. The next prime is 69721804093. The reversal of 69721804036 is 63040812796.

It can be written as a sum of positive squares in 2 ways, for example, as 61278031936 + 8443772100 = 247544^2 + 91890^2 .

It is a super-2 number, since 2×69721804036² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17120215 + ... + 17124286.

It is an arithmetic number, because the mean of its divisors is an integer number (10187739345).

Almost surely, 2^69721804036 is an apocalyptic number.

It is an amenable number.

69721804036 is a deficient number, since it is larger than the sum of its proper divisors (52531068104).

69721804036 is a wasteful number, since it uses less digits than its factorization.

69721804036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34245014 (or 34245012 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 69721804036 in words is "sixty-nine billion, seven hundred twenty-one million, eight hundred four thousand, thirty-six".