65128862946 has 64 divisors (see below), whose sum is σ = 149257801728. Its totient is φ = 18559352448.

The previous prime is 65128862933. The next prime is 65128862957. The reversal of 65128862946 is 64926882156.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45767991 + ... + 45769413.

It is an arithmetic number, because the mean of its divisors is an integer number (2332153152).

Almost surely, 2^65128862946 is an apocalyptic number.

65128862946 is an abundant number, since it is smaller than the sum of its proper divisors (84128938782).

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

65128862946 is a wasteful number, since it uses less digits than its factorization.

65128862946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3535.

The product of its digits is 9953280, while the sum is 57.

The spelling of 65128862946 in words is "sixty-five billion, one hundred twenty-eight million, eight hundred sixty-two thousand, nine hundred forty-six".