28416071464 has 64 divisors (see below), whose sum is σ = 60698211840. Its totient is φ = 12345178560.

The previous prime is 28416071443. The next prime is 28416071473. The reversal of 28416071464 is 46417061482.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28416071464.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2996859 + ... + 3006325.

It is an arithmetic number, because the mean of its divisors is an integer number (948409560).

Almost surely, 2^28416071464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28416071464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30349105920).

28416071464 is an abundant number, since it is smaller than the sum of its proper divisors (32282140376).

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

28416071464 is a wasteful number, since it uses less digits than its factorization.

28416071464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10990 (or 10986 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The spelling of 28416071464 in words is "twenty-eight billion, four hundred sixteen million, seventy-one thousand, four hundred sixty-four".