5087173621 has 2 divisors, whose sum is σ = 5087173622. Its totient is φ = 5087173620.

The previous prime is 5087173583. The next prime is 5087173627. The reversal of 5087173621 is 1263717805.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3848837521 + 1238336100 = 62039^2 + 35190^2 .

It is a cyclic number.

It is not a de Polignac number, because 5087173621 - 2²³ = 5078785013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5087173627) 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 as a sum of consecutive naturals, namely, 2543586810 + 2543586811.

It is an arithmetic number, because the mean of its divisors is an integer number (2543586811).

Almost surely, 2^5087173621 is an apocalyptic number.

It is an amenable number.

5087173621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5087173621 is an equidigital number, since it uses as much as digits as its factorization.

5087173621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 5087173621 is about 71324.4251361341. The cubic root of 5087173621 is about 1719.8563992471.

The spelling of 5087173621 in words is "five billion, eighty-seven million, one hundred seventy-three thousand, six hundred twenty-one".