6481789294997 has 2 divisors, whose sum is σ = 6481789294998. Its totient is φ = 6481789294996.

The previous prime is 6481789294919. The next prime is 6481789295021. The reversal of 6481789294997 is 7994929871846.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5853525392836 + 628263902161 = 2419406^2 + 792631^2 .

It is a cyclic number.

It is not a de Polignac number, because 6481789294997 - 2³⁰ = 6480715553173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6481789290997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3240894647498 + 3240894647499.

It is an arithmetic number, because the mean of its divisors is an integer number (3240894647499).

Almost surely, 2^{6481789294997} is an apocalyptic number.

It is an amenable number.

6481789294997 is a deficient number, since it is larger than the sum of its proper divisors (1).

6481789294997 is an equidigital number, since it uses as much as digits as its factorization.

6481789294997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3950456832, while the sum is 83.

The spelling of 6481789294997 in words is "six trillion, four hundred eighty-one billion, seven hundred eighty-nine million, two hundred ninety-four thousand, nine hundred ninety-seven".