28572217150 has 24 divisors (see below), whose sum is σ = 53149142880. Its totient is φ = 11427850560.

The previous prime is 28572217129. The next prime is 28572217159. The reversal of 28572217150 is 5171227582.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28572217159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 778002 + ... + 813898.

It is an arithmetic number, because the mean of its divisors is an integer number (2214547620).

Almost surely, 2^28572217150 is an apocalyptic number.

28572217150 is a deficient number, since it is larger than the sum of its proper divisors (24576925730).

28572217150 is a wasteful number, since it uses less digits than its factorization.

28572217150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51828 (or 51823 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 40.

The spelling of 28572217150 in words is "twenty-eight billion, five hundred seventy-two million, two hundred seventeen thousand, one hundred fifty".