63681346293 has 8 divisors (see below), whose sum is σ = 85246743456. Its totient is φ = 42285090000.

The previous prime is 63681346291. The next prime is 63681346303. The reversal of 63681346293 is 39264318636.

It is a happy number.

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

It is not a de Polignac number, because 63681346293 - 2¹ = 63681346291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63681346291) 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, 42284338 + ... + 42285843.

It is an arithmetic number, because the mean of its divisors is an integer number (10655842932).

Almost surely, 2^63681346293 is an apocalyptic number.

It is an amenable number.

63681346293 is a deficient number, since it is larger than the sum of its proper divisors (21565397163).

63681346293 is a wasteful number, since it uses less digits than its factorization.

63681346293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84570435.

The product of its digits is 3359232, while the sum is 51.

The spelling of 63681346293 in words is "sixty-three billion, six hundred eighty-one million, three hundred forty-six thousand, two hundred ninety-three".