52009877265991 has 4 divisors (see below), whose sum is σ = 52028525485800. Its totient is φ = 51991229046184.

The previous prime is 52009877265989. The next prime is 52009877266051. The reversal of 52009877265991 is 19956277890025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52009877265991 - 2¹ = 52009877265989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52009877265991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52009874265991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9324105721 + ... + 9324111298.

It is an arithmetic number, because the mean of its divisors is an integer number (13007131371450).

Almost surely, 2^{52009877265991} is an apocalyptic number.

52009877265991 is a deficient number, since it is larger than the sum of its proper divisors (18648219809).

52009877265991 is a wasteful number, since it uses less digits than its factorization.

52009877265991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18648219808.

The product of its (nonzero) digits is 171460800, while the sum is 70.

The spelling of 52009877265991 in words is "fifty-two trillion, nine billion, eight hundred seventy-seven million, two hundred sixty-five thousand, nine hundred ninety-one".