63706897613 has 8 divisors (see below), whose sum is σ = 64036611840. Its totient is φ = 63377879760.

The previous prime is 63706897601. The next prime is 63706897633. The reversal of 63706897613 is 31679860736.

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

It is a cyclic number.

It is not a de Polignac number, because 63706897613 - 2²⁶ = 63639788749 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 (63706897633) 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, 9848 + ... + 357086.

It is an arithmetic number, because the mean of its divisors is an integer number (8004576480).

Almost surely, 2^63706897613 is an apocalyptic number.

It is an amenable number.

63706897613 is a deficient number, since it is larger than the sum of its proper divisors (329714227).

63706897613 is a wasteful number, since it uses less digits than its factorization.

63706897613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348187.

The product of its (nonzero) digits is 6858432, while the sum is 56.

The spelling of 63706897613 in words is "sixty-three billion, seven hundred six million, eight hundred ninety-seven thousand, six hundred thirteen".