654213503677 has 2 divisors, whose sum is σ = 654213503678. Its totient is φ = 654213503676.

The previous prime is 654213503659. The next prime is 654213503693. The reversal of 654213503677 is 776305312456.

654213503677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 434879578116 + 219333925561 = 659454^2 + 468331^2 .

It is a cyclic number.

It is not a de Polignac number, because 654213503677 - 2⁷ = 654213503549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 654213503677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654213507677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327106751838 + 327106751839.

It is an arithmetic number, because the mean of its divisors is an integer number (327106751839).

Almost surely, 2^654213503677 is an apocalyptic number.

It is an amenable number.

654213503677 is a deficient number, since it is larger than the sum of its proper divisors (1).

654213503677 is an equidigital number, since it uses as much as digits as its factorization.

654213503677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3175200, while the sum is 49.

The spelling of 654213503677 in words is "six hundred fifty-four billion, two hundred thirteen million, five hundred three thousand, six hundred seventy-seven".