28717467492 has 48 divisors (see below), whose sum is σ = 77323430912. Its totient is φ = 8125328160.

The previous prime is 28717467391. The next prime is 28717467497. The reversal of 28717467492 is 29476471782.

It is not an unprimeable number, because it can be changed into a prime (28717467497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1650934 + ... + 1668237.

Almost surely, 2^28717467492 is an apocalyptic number.

It is an amenable number.

28717467492 is an abundant number, since it is smaller than the sum of its proper divisors (48605963420).

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

28717467492 is a wasteful number, since it uses less digits than its factorization.

28717467492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3319288 (or 3319286 counting only the distinct ones).

The product of its digits is 9483264, while the sum is 57.

The spelling of 28717467492 in words is "twenty-eight billion, seven hundred seventeen million, four hundred sixty-seven thousand, four hundred ninety-two".