63491486285736 has 48 divisors (see below), whose sum is σ = 171956632872960. Its totient is φ = 21163764247200.

The previous prime is 63491486285671. The next prime is 63491486285743. The reversal of 63491486285736 is 63758268419436.

It is a happy number.

63491486285736 is a `hidden beast` number, since 6 + 3 + 4 + 9 + 1 + 48 + 6 + 2 + 8 + 573 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26384511 + ... + 28690161.

It is an arithmetic number, because the mean of its divisors is an integer number (3582429851520).

Almost surely, 2^{63491486285736} is an apocalyptic number.

It is an amenable number.

63491486285736 is an abundant number, since it is smaller than the sum of its proper divisors (108465146587224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63491486285736 is a wasteful number, since it uses less digits than its factorization.

63491486285736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688126 (or 2688119 counting only the distinct ones).

The product of its digits is 1254113280, while the sum is 72.

The spelling of 63491486285736 in words is "sixty-three trillion, four hundred ninety-one billion, four hundred eighty-six million, two hundred eighty-five thousand, seven hundred thirty-six".