28349465616 has 40 divisors (see below), whose sum is σ = 81373467360. Its totient is φ = 9449821728.

The previous prime is 28349465609. The next prime is 28349465623. The reversal of 28349465616 is 61656494382.

28349465616 is a `hidden beast` number, since 2 + 8 + 34 + 9 + 46 + 561 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (28349465609) and next prime (28349465623).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 32811450 + ... + 32812313.

It is an arithmetic number, because the mean of its divisors is an integer number (2034336684).

Almost surely, 2^28349465616 is an apocalyptic number.

It is an amenable number.

28349465616 is an abundant number, since it is smaller than the sum of its proper divisors (53024001744).

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

28349465616 is a wasteful number, since it uses less digits than its factorization.

28349465616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65623780 (or 65623768 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 28349465616 in words is "twenty-eight billion, three hundred forty-nine million, four hundred sixty-five thousand, six hundred sixteen".