620735616373 has 2 divisors, whose sum is σ = 620735616374. Its totient is φ = 620735616372.

The previous prime is 620735616367. The next prime is 620735616433. The reversal of 620735616373 is 373616537026.

It is a happy number.

620735616373 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 590403214129 + 30332402244 = 768377^2 + 174162^2 .

It is a cyclic number.

It is not a de Polignac number, because 620735616373 - 2⁵ = 620735616341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620735610373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310367808186 + 310367808187.

It is an arithmetic number, because the mean of its divisors is an integer number (310367808187).

Almost surely, 2^620735616373 is an apocalyptic number.

It is an amenable number.

620735616373 is a deficient number, since it is larger than the sum of its proper divisors (1).

620735616373 is an equidigital number, since it uses as much as digits as its factorization.

620735616373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2857680, while the sum is 49.

The spelling of 620735616373 in words is "six hundred twenty billion, seven hundred thirty-five million, six hundred sixteen thousand, three hundred seventy-three".