502036412981 has 4 divisors (see below), whose sum is σ = 502053386700. Its totient is φ = 502019439264.

The previous prime is 502036412953. The next prime is 502036412987. The reversal of 502036412981 is 189214630205.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 425581397956 + 76455015025 = 652366^2 + 276505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-502036412981 is a prime.

It is a super-2 number, since 2×502036412981² (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 (502036412987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8442416 + ... + 8501673.

It is an arithmetic number, because the mean of its divisors is an integer number (125513346675).

Almost surely, 2^502036412981 is an apocalyptic number.

It is an amenable number.

502036412981 is a deficient number, since it is larger than the sum of its proper divisors (16973719).

502036412981 is a wasteful number, since it uses less digits than its factorization.

502036412981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16973718.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 502036412981 in words is "five hundred two billion, thirty-six million, four hundred twelve thousand, nine hundred eighty-one".