69728662782 has 64 divisors (see below), whose sum is σ = 166378406400. Its totient is φ = 21567530880.

The previous prime is 69728662777. The next prime is 69728662789. The reversal of 69728662782 is 28726682796.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69728662789) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 469732 + ... + 600087.

It is an arithmetic number, because the mean of its divisors is an integer number (2599662600).

Almost surely, 2^69728662782 is an apocalyptic number.

69728662782 is an abundant number, since it is smaller than the sum of its proper divisors (96649743618).

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

69728662782 is a wasteful number, since it uses less digits than its factorization.

69728662782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069918 (or 1069912 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 63.

The spelling of 69728662782 in words is "sixty-nine billion, seven hundred twenty-eight million, six hundred sixty-two thousand, seven hundred eighty-two".