69887604321 has 6 divisors (see below), whose sum is σ = 100948761810. Its totient is φ = 46591736208.

The previous prime is 69887604313. The next prime is 69887604323. The reversal of 69887604321 is 12340678896.

69887604321 is a `hidden beast` number, since 6 + 9 + 8 + 8 + 7 + 604 + 3 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 59651223696 + 10236380625 = 244236^2 + 101175^2 .

It is not a de Polignac number, because 69887604321 - 2³ = 69887604313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69887604323) 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 5 ways as a sum of consecutive naturals, for example, 3882644676 + ... + 3882644693.

It is an arithmetic number, because the mean of its divisors is an integer number (16824793635).

Almost surely, 2^69887604321 is an apocalyptic number.

It is an amenable number.

69887604321 is a deficient number, since it is larger than the sum of its proper divisors (31061157489).

69887604321 is a wasteful number, since it uses less digits than its factorization.

69887604321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7765289375 (or 7765289372 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 69887604321 in words is "sixty-nine billion, eight hundred eighty-seven million, six hundred four thousand, three hundred twenty-one".