507851493797 has 2 divisors, whose sum is σ = 507851493798. Its totient is φ = 507851493796.

The previous prime is 507851493727. The next prime is 507851493817. The reversal of 507851493797 is 797394158705.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256779346756 + 251072147041 = 506734^2 + 501071^2 .

It is a cyclic number.

It is not a de Polignac number, because 507851493797 - 2¹⁸ = 507851231653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (507851493727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253925746898 + 253925746899.

It is an arithmetic number, because the mean of its divisors is an integer number (253925746899).

Almost surely, 2^507851493797 is an apocalyptic number.

It is an amenable number.

507851493797 is a deficient number, since it is larger than the sum of its proper divisors (1).

507851493797 is an equidigital number, since it uses as much as digits as its factorization.

507851493797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 66679200, while the sum is 65.

The spelling of 507851493797 in words is "five hundred seven billion, eight hundred fifty-one million, four hundred ninety-three thousand, seven hundred ninety-seven".