28917617150 has 48 divisors (see below), whose sum is σ = 57822370560. Its totient is φ = 10725084000.

The previous prime is 28917617147. The next prime is 28917617159. The reversal of 28917617150 is 5171671982.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a junction number, because it is equal to n+sod(n) for n = 28917617095 and 28917617104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28917617159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279176 + ... + 368475.

It is an arithmetic number, because the mean of its divisors is an integer number (1204632720).

Almost surely, 2^28917617150 is an apocalyptic number.

28917617150 is a deficient number, since it is larger than the sum of its proper divisors (28904753410).

28917617150 is a wasteful number, since it uses less digits than its factorization.

28917617150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647729 (or 647724 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 47.

The spelling of 28917617150 in words is "twenty-eight billion, nine hundred seventeen million, six hundred seventeen thousand, one hundred fifty".