64427072446 has 8 divisors (see below), whose sum is σ = 105426118584. Its totient is φ = 29285032920.

The previous prime is 64427072377. The next prime is 64427072503.

64427072446 is nontrivially palindromic in base 10.

64427072446 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 junction number, because it is equal to n+sod(n) for n = 64427072396 and 64427072405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1464251625 + ... + 1464251668.

It is an arithmetic number, because the mean of its divisors is an integer number (13178264823).

Almost surely, 2^64427072446 is an apocalyptic number.

64427072446 is a deficient number, since it is larger than the sum of its proper divisors (40999046138).

64427072446 is a wasteful number, since it uses less digits than its factorization.

64427072446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2928503306.

The product of its (nonzero) digits is 1806336, while the sum is 46.

The spelling of 64427072446 in words is "sixty-four billion, four hundred twenty-seven million, seventy-two thousand, four hundred forty-six".