63969612967 has 8 divisors (see below), whose sum is σ = 71265882240. Its totient is φ = 57012705120.

The previous prime is 63969612961. The next prime is 63969612979. The reversal of 63969612967 is 76921696936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63969612967 is a prime.

It is a super-2 number, since 2×63969612967² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63969612899 and 63969612908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63969612961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84839959 + ... + 84840712.

It is an arithmetic number, because the mean of its divisors is an integer number (8908235280).

Almost surely, 2^63969612967 is an apocalyptic number.

63969612967 is a deficient number, since it is larger than the sum of its proper divisors (7296269273).

63969612967 is a wasteful number, since it uses less digits than its factorization.

63969612967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169680713.

The product of its digits is 39680928, while the sum is 64.

The spelling of 63969612967 in words is "sixty-three billion, nine hundred sixty-nine million, six hundred twelve thousand, nine hundred sixty-seven".