28744473491040 has 192 divisors, whose sum is σ = 93014144282304. Its totient is φ = 7456270123008.

The previous prime is 28744473491011. The next prime is 28744473491219. The reversal of 28744473491040 is 4019437444782.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76126392 + ... + 76503048.

It is an arithmetic number, because the mean of its divisors is an integer number (484448668137).

Almost surely, 2^{28744473491040} is an apocalyptic number.

28744473491040 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 28744473491040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46507072141152).

28744473491040 is an abundant number, since it is smaller than the sum of its proper divisors (64269670791264).

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

28744473491040 is a wasteful number, since it uses less digits than its factorization.

28744473491040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381009 (or 381001 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 57.

The spelling of 28744473491040 in words is "twenty-eight trillion, seven hundred forty-four billion, four hundred seventy-three million, four hundred ninety-one thousand, forty".