64245974811 has 16 divisors (see below), whose sum is σ = 86299840800. Its totient is φ = 42511804160.

The previous prime is 64245974803. The next prime is 64245974827. The reversal of 64245974811 is 11847954246.

It is a cyclic number.

It is not a de Polignac number, because 64245974811 - 2³ = 64245974803 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (64245974851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561391 + ... + 666071.

It is an arithmetic number, because the mean of its divisors is an integer number (5393740050).

Almost surely, 2^64245974811 is an apocalyptic number.

64245974811 is a deficient number, since it is larger than the sum of its proper divisors (22053865989).

64245974811 is a wasteful number, since it uses less digits than its factorization.

64245974811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106206.

The product of its digits is 1935360, while the sum is 51.

The spelling of 64245974811 in words is "sixty-four billion, two hundred forty-five million, nine hundred seventy-four thousand, eight hundred eleven".