538140622861 has 16 divisors (see below), whose sum is σ = 560559121920. Its totient is φ = 516040680960.

The previous prime is 538140622849. The next prime is 538140622871. The reversal of 538140622861 is 168226041835.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538140622861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538140622871) 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, 15427306 + ... + 15462148.

It is an arithmetic number, because the mean of its divisors is an integer number (35034945120).

Almost surely, 2^538140622861 is an apocalyptic number.

It is an amenable number.

538140622861 is a deficient number, since it is larger than the sum of its proper divisors (22418499059).

538140622861 is a wasteful number, since it uses less digits than its factorization.

538140622861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39396.

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 538140622861 in words is "five hundred thirty-eight billion, one hundred forty million, six hundred twenty-two thousand, eight hundred sixty-one".