69884890065 has 24 divisors (see below), whose sum is σ = 121803071208. Its totient is φ = 37066014720.

The previous prime is 69884890051. The next prime is 69884890067. The reversal of 69884890065 is 56009848896.

69884890065 is a `hidden beast` number, since 6 + 98 + 8 + 489 + 0 + 0 + 65 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5750340561 + 64134549504 = 75831^2 + 253248^2 .

It is not a de Polignac number, because 69884890065 - 2⁶ = 69884890001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 69884889984 and 69884890011.

It is not an unprimeable number, because it can be changed into a prime (69884890067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4281904 + ... + 4298193.

It is an arithmetic number, because the mean of its divisors is an integer number (5075127967).

Almost surely, 2^69884890065 is an apocalyptic number.

It is an amenable number.

69884890065 is a deficient number, since it is larger than the sum of its proper divisors (51918181143).

69884890065 is a wasteful number, since it uses less digits than its factorization.

69884890065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8580289 (or 8580286 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 63.

The spelling of 69884890065 in words is "sixty-nine billion, eight hundred eighty-four million, eight hundred ninety thousand, sixty-five".