69900485769 has 9 divisors (see below), whose sum is σ = 100968514023. Its totient is φ = 46599795072.

The previous prime is 69900485731. The next prime is 69900485771. The reversal of 69900485769 is 96758400996.

It is a happy number.

The square root of 69900485769 is 264387.

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

69900485769 is a `hidden beast` number, since 6 + 9 + 90 + 0 + 485 + 7 + 69 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15816332169 + 54084153600 = 125763^2 + 232560^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 69900485769 - 2¹⁷ = 69900354697 is a prime.

It is a super-2 number, since 2×69900485769² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (69900485569) 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, 749097 + ... + 837225.

Almost surely, 2^69900485769 is an apocalyptic number.

69900485769 is the 264387-th square number.

69900485769 is the 132194-th centered octagonal number.

It is an amenable number.

69900485769 is a deficient number, since it is larger than the sum of its proper divisors (31068028254).

69900485769 is an frugal number, since it uses more digits than its factorization.

69900485769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176264 (or 88132 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 63.

The spelling of 69900485769 in words is "sixty-nine billion, nine hundred million, four hundred eighty-five thousand, seven hundred sixty-nine".