620028001287437 has 2 divisors, whose sum is σ = 620028001287438. Its totient is φ = 620028001287436.

The previous prime is 620028001287413. The next prime is 620028001287439. The reversal of 620028001287437 is 734782100820026.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 619378149261481 + 649852025956 = 24887309^2 + 806134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620028001287437 is a prime.

Together with 620028001287439, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620028001287439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310014000643718 + 310014000643719.

It is an arithmetic number, because the mean of its divisors is an integer number (310014000643719).

Almost surely, 2^{620028001287437} is an apocalyptic number.

It is an amenable number.

620028001287437 is a deficient number, since it is larger than the sum of its proper divisors (1).

620028001287437 is an equidigital number, since it uses as much as digits as its factorization.

620028001287437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1806336, while the sum is 50.

The spelling of 620028001287437 in words is "six hundred twenty trillion, twenty-eight billion, one million, two hundred eighty-seven thousand, four hundred thirty-seven".