53423261765 has 8 divisors (see below), whose sum is σ = 64161658008. Its totient is φ = 42702780160.

The previous prime is 53423261741. The next prime is 53423261777. The reversal of 53423261765 is 56716232435.

It can be written as a sum of positive squares in 4 ways, for example, as 11032981444 + 42390280321 = 105038^2 + 205889^2 .

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

It is not a de Polignac number, because 53423261765 - 2⁸ = 53423261509 is a prime.

It is a super-2 number, since 2×53423261765² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4472096 + ... + 4484025.

It is an arithmetic number, because the mean of its divisors is an integer number (8020207251).

Almost surely, 2^53423261765 is an apocalyptic number.

It is an amenable number.

53423261765 is a deficient number, since it is larger than the sum of its proper divisors (10738396243).

53423261765 is a wasteful number, since it uses less digits than its factorization.

53423261765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8957319.

The product of its digits is 907200, while the sum is 44.

The spelling of 53423261765 in words is "fifty-three billion, four hundred twenty-three million, two hundred sixty-one thousand, seven hundred sixty-five".