507772583821 has 2 divisors, whose sum is σ = 507772583822. Its totient is φ = 507772583820.

The previous prime is 507772583753. The next prime is 507772583867. The reversal of 507772583821 is 128385277705.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 326138077225 + 181634506596 = 571085^2 + 426186^2 .

It is a cyclic number.

It is not a de Polignac number, because 507772583821 - 2⁹ = 507772583309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (507772583881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253886291910 + 253886291911.

It is an arithmetic number, because the mean of its divisors is an integer number (253886291911).

Almost surely, 2^507772583821 is an apocalyptic number.

It is an amenable number.

507772583821 is a deficient number, since it is larger than the sum of its proper divisors (1).

507772583821 is an equidigital number, since it uses as much as digits as its factorization.

507772583821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6585600, while the sum is 55.

The spelling of 507772583821 in words is "five hundred seven billion, seven hundred seventy-two million, five hundred eighty-three thousand, eight hundred twenty-one".