52389720861 has 16 divisors (see below), whose sum is σ = 70830432000. Its totient is φ = 34439885568.

The previous prime is 52389720839. The next prime is 52389720959. The reversal of 52389720861 is 16802798325.

It is not a de Polignac number, because 52389720861 - 2⁶ = 52389720797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52389720821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169336 + ... + 365313.

It is an arithmetic number, because the mean of its divisors is an integer number (4426902000).

Almost surely, 2^52389720861 is an apocalyptic number.

It is an amenable number.

52389720861 is a deficient number, since it is larger than the sum of its proper divisors (18440711139).

52389720861 is a wasteful number, since it uses less digits than its factorization.

52389720861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535108.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 52389720861 in words is "fifty-two billion, three hundred eighty-nine million, seven hundred twenty thousand, eight hundred sixty-one".