63487934667 has 12 divisors (see below), whose sum is σ = 91706988360. Its totient is φ = 42324277248.

The previous prime is 63487934641. The next prime is 63487934677. The reversal of 63487934667 is 76643978436.

63487934667 is a `hidden beast` number, since 6 + 3 + 4 + 87 + 93 + 466 + 7 = 666.

It is not a de Polignac number, because 63487934667 - 2⁶ = 63487934603 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (63487934677) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 640368 + ... + 732834.

It is an arithmetic number, because the mean of its divisors is an integer number (7642249030).

Almost surely, 2^63487934667 is an apocalyptic number.

63487934667 is a deficient number, since it is larger than the sum of its proper divisors (28219053693).

63487934667 is a wasteful number, since it uses less digits than its factorization.

63487934667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168762 (or 168759 counting only the distinct ones).

The product of its digits is 109734912, while the sum is 63.

The spelling of 63487934667 in words is "sixty-three billion, four hundred eighty-seven million, nine hundred thirty-four thousand, six hundred sixty-seven".