2147639568064 has 56 divisors (see below), whose sum is σ = 4399594195968. Its totient is φ = 1039086654720.

The previous prime is 2147639568059. The next prime is 2147639568133. The reversal of 2147639568064 is 4608659367412.

It is a super-2 number, since 2×2147639568064² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2147639567993 and 2147639568011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25239639 + ... + 25324585.

It is a 1-persistent number, because it is pandigital, but 2⋅2147639568064 = 4295279136128 is not.

Almost surely, 2^{2147639568064} is an apocalyptic number.

It is an amenable number.

2147639568064 is an abundant number, since it is smaller than the sum of its proper divisors (2251954627904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2147639568064 is a wasteful number, since it uses less digits than its factorization.

2147639568064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97733 (or 97723 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 61.

The spelling of 2147639568064 in words is "two trillion, one hundred forty-seven billion, six hundred thirty-nine million, five hundred sixty-eight thousand, sixty-four".