28673577040 has 80 divisors (see below), whose sum is σ = 68115926016. Its totient is φ = 11221977600.

The previous prime is 28673576993. The next prime is 28673577059. The reversal of 28673577040 is 4077537682.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 916699 + ... + 947461.

Almost surely, 2^28673577040 is an apocalyptic number.

28673577040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28673577040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34057963008).

28673577040 is an abundant number, since it is smaller than the sum of its proper divisors (39442348976).

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

28673577040 is a wasteful number, since it uses less digits than its factorization.

28673577040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31028 (or 31022 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 49.

The spelling of 28673577040 in words is "twenty-eight billion, six hundred seventy-three million, five hundred seventy-seven thousand, forty".