52991441769 has 64 divisors (see below), whose sum is σ = 85870837760. Its totient is φ = 28393908480.

The previous prime is 52991441743. The next prime is 52991441771. The reversal of 52991441769 is 96714419925.

It is a happy number.

52991441769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52991441769 - 2¹⁵ = 52991409001 is a prime.

It is a super-2 number, since 2×52991441769² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52991441729) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27413127 + ... + 27415059.

It is an arithmetic number, because the mean of its divisors is an integer number (1341731840).

Almost surely, 2^52991441769 is an apocalyptic number.

It is an amenable number.

52991441769 is a deficient number, since it is larger than the sum of its proper divisors (32879395991).

52991441769 is a wasteful number, since it uses less digits than its factorization.

52991441769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630.

The product of its digits is 4898880, while the sum is 57.

The spelling of 52991441769 in words is "fifty-two billion, nine hundred ninety-one million, four hundred forty-one thousand, seven hundred sixty-nine".