69217400464 has 135 divisors (see below), whose sum is σ = 147216464913. Its totient is φ = 31520526336.

The previous prime is 69217400453. The next prime is 69217400519. The reversal of 69217400464 is 46400471296.

The square root of 69217400464 is 263092.

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

It can be written as a sum of positive squares in 13 ways, for example, as 2554291600 + 66663108864 = 50540^2 + 258192^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 69217400464.

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 26 ways as a sum of consecutive naturals, for example, 948183532 + ... + 948183604.

Almost surely, 2^69217400464 is an apocalyptic number.

69217400464 is the 263092-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69217400464

69217400464 is an abundant number, since it is smaller than the sum of its proper divisors (77999064449).

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

69217400464 is an equidigital number, since it uses as much as digits as its factorization.

69217400464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 69217400464 in words is "sixty-nine billion, two hundred seventeen million, four hundred thousand, four hundred sixty-four".