63491486343479 has 6 divisors (see below), whose sum is σ = 65756343169920. Its totient is φ = 61302124744616.

The previous prime is 63491486343469. The next prime is 63491486343517. The reversal of 63491486343479 is 97434368419436.

It is not a de Polignac number, because 63491486343479 - 2⁸ = 63491486343223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63491486343409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37747612919 + ... + 37747614600.

It is an arithmetic number, because the mean of its divisors is an integer number (10959390528320).

Almost surely, 2^{63491486343479} is an apocalyptic number.

63491486343479 is a deficient number, since it is larger than the sum of its proper divisors (2264856826441).

63491486343479 is an equidigital number, since it uses as much as digits as its factorization.

63491486343479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75495227577 (or 75495227548 counting only the distinct ones).

The product of its digits is 1128701952, while the sum is 71.

The spelling of 63491486343479 in words is "sixty-three trillion, four hundred ninety-one billion, four hundred eighty-six million, three hundred forty-three thousand, four hundred seventy-nine".