63168537379 has 8 divisors (see below), whose sum is σ = 66384536240. Its totient is φ = 60031946016.

The previous prime is 63168537319. The next prime is 63168537391. The reversal of 63168537379 is 97373586136.

It is a happy number.

63168537379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 63168537379 - 2⁹ = 63168536867 is a prime.

It is a super-2 number, since 2×63168537379² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63168537319) 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, 19850244 + ... + 19853425.

It is an arithmetic number, because the mean of its divisors is an integer number (8298067030).

Almost surely, 2^63168537379 is an apocalyptic number.

63168537379 is a deficient number, since it is larger than the sum of its proper divisors (3215998861).

63168537379 is a wasteful number, since it uses less digits than its factorization.

63168537379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39703749.

The product of its digits is 17146080, while the sum is 58.

The spelling of 63168537379 in words is "sixty-three billion, one hundred sixty-eight million, five hundred thirty-seven thousand, three hundred seventy-nine".