52019278765917 has 16 divisors (see below), whose sum is σ = 69382474589952. Its totient is φ = 34667801663040.

The previous prime is 52019278765901. The next prime is 52019278765963. The reversal of 52019278765917 is 71956787291025.

It is a happy number.

It is not a de Polignac number, because 52019278765917 - 2⁴ = 52019278765901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52019278765417) 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, 634595868 + ... + 634677834.

It is an arithmetic number, because the mean of its divisors is an integer number (4336404661872).

Almost surely, 2^{52019278765917} is an apocalyptic number.

It is an amenable number.

52019278765917 is a deficient number, since it is larger than the sum of its proper divisors (17363195824035).

52019278765917 is a wasteful number, since it uses less digits than its factorization.

52019278765917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150868.

The product of its (nonzero) digits is 133358400, while the sum is 69.

The spelling of 52019278765917 in words is "fifty-two trillion, nineteen billion, two hundred seventy-eight million, seven hundred sixty-five thousand, nine hundred seventeen".