538444283280464 has 60 divisors (see below), whose sum is σ = 1150432371699072. Its totient is φ = 243950178415680.

The previous prime is 538444283280457. The next prime is 538444283280473. The reversal of 538444283280464 is 464082382444835.

It is a self number, because there is not a number n which added to its sum of digits gives 538444283280464.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 452373152 + ... + 453561855.

Almost surely, 2^{538444283280464} is an apocalyptic number.

It is an amenable number.

538444283280464 is an abundant number, since it is smaller than the sum of its proper divisors (611988088418608).

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

538444283280464 is a wasteful number, since it uses less digits than its factorization.

538444283280464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905935344 (or 905935327 counting only the distinct ones).

The product of its (nonzero) digits is 566231040, while the sum is 65.

The spelling of 538444283280464 in words is "five hundred thirty-eight trillion, four hundred forty-four billion, two hundred eighty-three million, two hundred eighty thousand, four hundred sixty-four".