1965797064 has 96 divisors (see below), whose sum is σ = 6637775040. Its totient is φ = 510595200.

The previous prime is 1965797063. The next prime is 1965797089. The reversal of 1965797064 is 4607975691.

1965797064 is a `hidden beast` number, since 1 + 9 + 6 + 579 + 7 + 0 + 64 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1965797064.

It is not an unprimeable number, because it can be changed into a prime (1965797063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171747 + ... + 182834.

It is an arithmetic number, because the mean of its divisors is an integer number (69143490).

Almost surely, 2^1965797064 is an apocalyptic number.

1965797064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1965797064 is an abundant number, since it is smaller than the sum of its proper divisors (4671977976).

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

1965797064 is a wasteful number, since it uses less digits than its factorization.

1965797064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354611 (or 354604 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The square root of 1965797064 is about 44337.3100672560. The cubic root of 1965797064 is about 1252.6975480533.

The spelling of 1965797064 in words is "one billion, nine hundred sixty-five million, seven hundred ninety-seven thousand, sixty-four".