28674955540 has 48 divisors (see below), whose sum is σ = 75076251264. Its totient is φ = 8937648000.

The previous prime is 28674955499. The next prime is 28674955549. The reversal of 28674955540 is 4555947682.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28674955549) 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, 9308511 + ... + 9311590.

It is an arithmetic number, because the mean of its divisors is an integer number (1564088568).

Almost surely, 2^28674955540 is an apocalyptic number.

28674955540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28674955540 is an abundant number, since it is smaller than the sum of its proper divisors (46401295724).

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

28674955540 is a wasteful number, since it uses less digits than its factorization.

28674955540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18620128 (or 18620126 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 55.

The spelling of 28674955540 in words is "twenty-eight billion, six hundred seventy-four million, nine hundred fifty-five thousand, five hundred forty".