28294694616 has 32 divisors (see below), whose sum is σ = 71011992240. Its totient is φ = 9394864128.

The previous prime is 28294694611. The next prime is 28294694647. The reversal of 28294694616 is 61649649282.

It is a super-3 number, since 3×28294694616³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28294694611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2287501 + ... + 2299836.

Almost surely, 2^28294694616 is an apocalyptic number.

It is an amenable number.

28294694616 is an abundant number, since it is smaller than the sum of its proper divisors (42717297624).

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

28294694616 is a wasteful number, since it uses less digits than its factorization.

28294694616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4587603 (or 4587599 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 57.

The spelling of 28294694616 in words is "twenty-eight billion, two hundred ninety-four million, six hundred ninety-four thousand, six hundred sixteen".