69942696080625 has 45 divisors (see below), whose sum is σ = 126246144304423. Its totient is φ = 37302436716000.

The previous prime is 69942696080623. The next prime is 69942696080639. The reversal of 69942696080625 is 52608069624996.

The square root of 69942696080625 is 8363175.

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

69942696080625 is a `hidden beast` number, since 6 + 9 + 9 + 4 + 2 + 6 + 9 + 608 + 0 + 6 + 2 + 5 = 666.

It can be written as a sum of positive squares in 7 ways, for example, as 69058742605281 + 883953475344 = 8310159^2 + 940188^2 .

It is a tau number, because it is divible by the number of its divisors (45).

It is not a de Polignac number, because 69942696080625 - 2¹ = 69942696080623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69942696080623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 627182371 + ... + 627293879.

Almost surely, 2^{69942696080625} is an apocalyptic number.

69942696080625 is the 8363175-th square number.

69942696080625 is the 4181588-th centered octagonal number.

It is an amenable number.

69942696080625 is a deficient number, since it is larger than the sum of its proper divisors (56303448223798).

69942696080625 is an frugal number, since it uses more digits than its factorization.

69942696080625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223044 (or 111517 counting only the distinct ones).

The product of its (nonzero) digits is 604661760, while the sum is 72.

The spelling of 69942696080625 in words is "sixty-nine trillion, nine hundred forty-two billion, six hundred ninety-six million, eighty thousand, six hundred twenty-five".