28730160174447 has 48 divisors (see below), whose sum is σ = 45060530231808. Its totient is φ = 18258152885280.

The previous prime is 28730160174433. The next prime is 28730160174461. The reversal of 28730160174447 is 74447106103782.

It is a happy number.

28730160174447 is a `hidden beast` number, since 2 + 8 + 7 + 30 + 160 + 1 + 7 + 4 + 447 = 666.

It is an interprime number because it is at equal distance from previous prime (28730160174433) and next prime (28730160174461).

It is not a de Polignac number, because 28730160174447 - 2⁴ = 28730160174431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28730160174393 and 28730160174402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28730160174427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7134579 + ... + 10409732.

It is an arithmetic number, because the mean of its divisors is an integer number (938761046496).

Almost surely, 2^{28730160174447} is an apocalyptic number.

28730160174447 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

28730160174447 is a deficient number, since it is larger than the sum of its proper divisors (16330370057361).

28730160174447 is a wasteful number, since it uses less digits than its factorization.

28730160174447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17544642 (or 17544630 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 54.

The spelling of 28730160174447 in words is "twenty-eight trillion, seven hundred thirty billion, one hundred sixty million, one hundred seventy-four thousand, four hundred forty-seven".