6461461397 has 2 divisors, whose sum is σ = 6461461398. Its totient is φ = 6461461396.

The previous prime is 6461461387. The next prime is 6461461411. The reversal of 6461461397 is 7931641646.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6372988561 + 88472836 = 79831^2 + 9406^2 .

It is a cyclic number.

It is not a de Polignac number, because 6461461397 - 2⁴ = 6461461381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6461461327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3230730698 + 3230730699.

It is an arithmetic number, because the mean of its divisors is an integer number (3230730699).

Almost surely, 2^6461461397 is an apocalyptic number.

It is an amenable number.

6461461397 is a deficient number, since it is larger than the sum of its proper divisors (1).

6461461397 is an equidigital number, since it uses as much as digits as its factorization.

6461461397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 47.

The square root of 6461461397 is about 80383.2158911299. The cubic root of 6461461397 is about 1862.5599119025.

The spelling of 6461461397 in words is "six billion, four hundred sixty-one million, four hundred sixty-one thousand, three hundred ninety-seven".