536830726981 has 6 divisors (see below), whose sum is σ = 545637047046. Its totient is φ = 528024594600.

The previous prime is 536830726909. The next prime is 536830726997. The reversal of 536830726981 is 189627038635.

It can be written as a sum of positive squares in only one way, i.e., 316818133956 + 220012593025 = 562866^2 + 469055^2 .

It is not a de Polignac number, because 536830726981 - 2²⁹ = 536293856069 is a prime.

It is a super-2 number, since 2×536830726981² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (536830726381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5675566 + ... + 5769376.

It is an arithmetic number, because the mean of its divisors is an integer number (90939507841).

Almost surely, 2^536830726981 is an apocalyptic number.

It is an amenable number.

536830726981 is a deficient number, since it is larger than the sum of its proper divisors (8806320065).

536830726981 is an frugal number, since it uses more digits than its factorization.

536830726981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187683 (or 93872 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 536830726981 in words is "five hundred thirty-six billion, eight hundred thirty million, seven hundred twenty-six thousand, nine hundred eighty-one".