53861053861 has 8 divisors (see below), whose sum is σ = 54400835448. Its totient is φ = 53321400000.

The previous prime is 53861053801. The next prime is 53861053877. The reversal of 53861053861 is 16835016835.

It can be written as a sum of positive squares in 4 ways, for example, as 48062231361 + 5798822500 = 219231^2 + 76150^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53861053861 - 2¹¹ = 53861051813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53861053801) 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 7 ways as a sum of consecutive naturals, for example, 973071 + ... + 1026931.

It is an arithmetic number, because the mean of its divisors is an integer number (6800104431).

Almost surely, 2^53861053861 is an apocalyptic number.

It is an amenable number.

53861053861 is a deficient number, since it is larger than the sum of its proper divisors (539781587).

53861053861 is a wasteful number, since it uses less digits than its factorization.

53861053861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63863.

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 53861053861 in words is "fifty-three billion, eight hundred sixty-one million, fifty-three thousand, eight hundred sixty-one".