69113781025 has 9 divisors (see below), whose sum is σ = 85702718451. Its totient is φ = 55289973240.

The previous prime is 69113781001. The next prime is 69113781029. The reversal of 69113781025 is 52018731196.

The square root of 69113781025 is 262895.

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., 24880961169 + 44232819856 = 157737^2 + 210316^2 .

It is not a de Polignac number, because 69113781025 - 2⁹ = 69113780513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69113781029) 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 8 ways as a sum of consecutive naturals, for example, 1288186 + ... + 1340764.

Almost surely, 2^69113781025 is an apocalyptic number.

69113781025 is the 262895-th square number.

69113781025 is the 131448-th centered octagonal number.

It is an amenable number.

69113781025 is a deficient number, since it is larger than the sum of its proper divisors (16588937426).

69113781025 is an frugal number, since it uses more digits than its factorization.

69113781025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105168 (or 52584 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 43.

The spelling of 69113781025 in words is "sixty-nine billion, one hundred thirteen million, seven hundred eighty-one thousand, twenty-five".