28411001668044 has 18 divisors (see below), whose sum is σ = 71816698660980. Its totient is φ = 9470333889336.

The previous prime is 28411001668043. The next prime is 28411001668069. The reversal of 28411001668044 is 44086610011482.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (28411001668043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 394597245354 + ... + 394597245425.

Almost surely, 2^{28411001668044} is an apocalyptic number.

It is an amenable number.

28411001668044 is an abundant number, since it is smaller than the sum of its proper divisors (43405696992936).

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

28411001668044 is a wasteful number, since it uses less digits than its factorization.

28411001668044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789194490789 (or 789194490784 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The spelling of 28411001668044 in words is "twenty-eight trillion, four hundred eleven billion, one million, six hundred sixty-eight thousand, forty-four".