63156379813642 has 8 divisors (see below), whose sum is σ = 94737136259556. Its totient is φ = 31577334393792.

The previous prime is 63156379813589. The next prime is 63156379813643. The reversal of 63156379813642 is 24631897365136.

It is a happy number.

63156379813642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 42394696676641 + 20761683137001 = 6511121^2 + 4556499^2 .

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

It is a super-2 number, since 2×63156379813642² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63156379813643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427664233 + ... + 427811884.

Almost surely, 2^{63156379813642} is an apocalyptic number.

63156379813642 is a deficient number, since it is larger than the sum of its proper divisors (31580756445914).

63156379813642 is a wasteful number, since it uses less digits than its factorization.

63156379813642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855513032.

The product of its digits is 117573120, while the sum is 64.

The spelling of 63156379813642 in words is "sixty-three trillion, one hundred fifty-six billion, three hundred seventy-nine million, eight hundred thirteen thousand, six hundred forty-two".