65123448377 has 16 divisors (see below), whose sum is σ = 75659527440. Its totient is φ = 55510321152.

The previous prime is 65123448337. The next prime is 65123448419. The reversal of 65123448377 is 77384432156.

It can be written as a sum of positive squares in 8 ways, for example, as 4578416896 + 60545031481 = 67664^2 + 246059^2 .

It is not a de Polignac number, because 65123448377 - 2¹⁰ = 65123447353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65123448337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2768252 + ... + 2791677.

It is an arithmetic number, because the mean of its divisors is an integer number (4728720465).

Almost surely, 2^65123448377 is an apocalyptic number.

It is an amenable number.

65123448377 is a deficient number, since it is larger than the sum of its proper divisors (10536079063).

65123448377 is a wasteful number, since it uses less digits than its factorization.

65123448377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5560012.

The product of its digits is 3386880, while the sum is 50.

The spelling of 65123448377 in words is "sixty-five billion, one hundred twenty-three million, four hundred forty-eight thousand, three hundred seventy-seven".