6346131150421 has 2 divisors, whose sum is σ = 6346131150422. Its totient is φ = 6346131150420.

The previous prime is 6346131150379. The next prime is 6346131150439. The reversal of 6346131150421 is 1240511316436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4679672195025 + 1666458955396 = 2163255^2 + 1290914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6346131150421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6346131150461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3173065575210 + 3173065575211.

It is an arithmetic number, because the mean of its divisors is an integer number (3173065575211).

Almost surely, 2^{6346131150421} is an apocalyptic number.

It is an amenable number.

6346131150421 is a deficient number, since it is larger than the sum of its proper divisors (1).

6346131150421 is an equidigital number, since it uses as much as digits as its factorization.

6346131150421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 6346131150421 its reverse (1240511316436), we get a palindrome (7586642466857).

The spelling of 6346131150421 in words is "six trillion, three hundred forty-six billion, one hundred thirty-one million, one hundred fifty thousand, four hundred twenty-one".