69481381052 has 12 divisors (see below), whose sum is σ = 121597066416. Its totient is φ = 34739362080.

The previous prime is 69481381051. The next prime is 69481381061. The reversal of 69481381052 is 25018318496.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 69481380988 and 69481381006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69481381051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209393 + ... + 427560.

It is an arithmetic number, because the mean of its divisors is an integer number (10133088868).

Almost surely, 2^69481381052 is an apocalyptic number.

It is an amenable number.

69481381052 is a deficient number, since it is larger than the sum of its proper divisors (52115685364).

69481381052 is a wasteful number, since it uses less digits than its factorization.

69481381052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664228 (or 664226 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 69481381052 in words is "sixty-nine billion, four hundred eighty-one million, three hundred eighty-one thousand, fifty-two".