4961193764865 has 128 divisors (see below), whose sum is σ = 9115768553472. Its totient is φ = 2282438062080.

The previous prime is 4961193764861. The next prime is 4961193764873. The reversal of 4961193764865 is 5684673911694.

It is not a de Polignac number, because 4961193764865 - 2² = 4961193764861 is a prime.

It is a super-2 number, since 2×4961193764865² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 4961193764865.

It is not an unprimeable number, because it can be changed into a prime (4961193764861) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 548618034 + ... + 548627076.

It is an arithmetic number, because the mean of its divisors is an integer number (71216941824).

Almost surely, 2^{4961193764865} is an apocalyptic number.

It is an amenable number.

4961193764865 is a deficient number, since it is larger than the sum of its proper divisors (4154574788607).

4961193764865 is a wasteful number, since it uses less digits than its factorization.

4961193764865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10239.

The product of its digits is 235146240, while the sum is 69.

The spelling of 4961193764865 in words is "four trillion, nine hundred sixty-one billion, one hundred ninety-three million, seven hundred sixty-four thousand, eight hundred sixty-five".