69281609796 has 135 divisors (see below), whose sum is σ = 210786645069. Its totient is φ = 19785269952.

The previous prime is 69281609777. The next prime is 69281609819. The reversal of 69281609796 is 69790618296.

It is a happy number.

The square root of 69281609796 is 263214.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 61051491396 + 8230118400 = 247086^2 + 90720^2 .

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 33163920 + ... + 33166008.

Almost surely, 2^69281609796 is an apocalyptic number.

69281609796 is the 263214-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69281609796

69281609796 is an abundant number, since it is smaller than the sum of its proper divisors (141505035273).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69281609796 is an equidigital number, since it uses as much as digits as its factorization.

69281609796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4208 (or 2101 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 63.

It can be divided in two parts, 6928160 and 9796, that added together give a square (6937956 = 2634²).

The spelling of 69281609796 in words is "sixty-nine billion, two hundred eighty-one million, six hundred nine thousand, seven hundred ninety-six".