69643268490 has 32 divisors (see below), whose sum is σ = 170700099840. Its totient is φ = 18176398784.

The previous prime is 69643268447. The next prime is 69643268509. The reversal of 69643268490 is 9486234696.

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 69643268490.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24694785 + ... + 24697604.

It is an arithmetic number, because the mean of its divisors is an integer number (5334378120).

Almost surely, 2^69643268490 is an apocalyptic number.

69643268490 is an abundant number, since it is smaller than the sum of its proper divisors (101056831350).

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

69643268490 is a wasteful number, since it uses less digits than its factorization.

69643268490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49392446.

The product of its (nonzero) digits is 13436928, while the sum is 57.

The spelling of 69643268490 in words is "sixty-nine billion, six hundred forty-three million, two hundred sixty-eight thousand, four hundred ninety".