444725208505668 has 24 divisors (see below), whose sum is σ = 1059770709631872. Its totient is φ = 145087656675424.

The previous prime is 444725208505603. The next prime is 444725208505703. The reversal of 444725208505668 is 866505802527444.

It is a super-2 number, since 2×444725208505668² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 444725208505599 and 444725208505608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394259936055 + ... + 394259937182.

It is an arithmetic number, because the mean of its divisors is an integer number (44157112901328).

Almost surely, 2^{444725208505668} is an apocalyptic number.

It is an amenable number.

444725208505668 is an abundant number, since it is smaller than the sum of its proper divisors (615045501126204).

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

444725208505668 is a wasteful number, since it uses less digits than its factorization.

444725208505668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788519873291 (or 788519873289 counting only the distinct ones).

The product of its (nonzero) digits is 516096000, while the sum is 66.

The spelling of 444725208505668 in words is "four hundred forty-four trillion, seven hundred twenty-five billion, two hundred eight million, five hundred five thousand, six hundred sixty-eight".