69112581648 has 40 divisors (see below), whose sum is σ = 194771822496. Its totient is φ = 20943206400.

The previous prime is 69112581647. The next prime is 69112581673. The reversal of 69112581648 is 84618521196.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 69112581648.

It is not an unprimeable number, because it can be changed into a prime (69112581641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65446993 + ... + 65448048.

Almost surely, 2^69112581648 is an apocalyptic number.

It is an amenable number.

69112581648 is an abundant number, since it is smaller than the sum of its proper divisors (125659240848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69112581648 is a wasteful number, since it uses less digits than its factorization.

69112581648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130895063 (or 130895057 counting only the distinct ones).

The product of its digits is 829440, while the sum is 51.

The spelling of 69112581648 in words is "sixty-nine billion, one hundred twelve million, five hundred eighty-one thousand, six hundred forty-eight".