64454526444 has 96 divisors (see below), whose sum is σ = 198533776896. Its totient is φ = 15756641280.

The previous prime is 64454526413. The next prime is 64454526457. The reversal of 64454526444 is 44462545446.

It is a junction number, because it is equal to n+sod(n) for n = 64454526393 and 64454526402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2035939 + ... + 2067354.

It is an arithmetic number, because the mean of its divisors is an integer number (2068060176).

Almost surely, 2^64454526444 is an apocalyptic number.

It is an amenable number.

64454526444 is an abundant number, since it is smaller than the sum of its proper divisors (134079250452).

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

64454526444 is a wasteful number, since it uses less digits than its factorization.

64454526444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103335 (or 4103333 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 48.

The spelling of 64454526444 in words is "sixty-four billion, four hundred fifty-four million, five hundred twenty-six thousand, four hundred forty-four".