500374222472981 has 2 divisors, whose sum is σ = 500374222472982. Its totient is φ = 500374222472980.

The previous prime is 500374222472933. The next prime is 500374222473043. The reversal of 500374222472981 is 189274222473005.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 307048835250481 + 193325387222500 = 17522809^2 + 13904150^2 .

It is a cyclic number.

It is not a de Polignac number, because 500374222472981 - 2¹⁰ = 500374222471957 is a prime.

It is a super-2 number, since 2×500374222472981² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500374222442981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250187111236490 + 250187111236491.

It is an arithmetic number, because the mean of its divisors is an integer number (250187111236491).

Almost surely, 2^{500374222472981} is an apocalyptic number.

It is an amenable number.

500374222472981 is a deficient number, since it is larger than the sum of its proper divisors (1).

500374222472981 is an equidigital number, since it uses as much as digits as its factorization.

500374222472981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 500374222472981 in words is "five hundred trillion, three hundred seventy-four billion, two hundred twenty-two million, four hundred seventy-two thousand, nine hundred eighty-one".