28871587443146 has 32 divisors (see below), whose sum is σ = 50142333849600. Its totient is φ = 12212501124096.

The previous prime is 28871587443137. The next prime is 28871587443151. The reversal of 28871587443146 is 64134478517882.

It is a super-2 number, since 2×28871587443146² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41724821 + ... + 42411128.

It is an arithmetic number, because the mean of its divisors is an integer number (1566947932800).

Almost surely, 2^{28871587443146} is an apocalyptic number.

28871587443146 is a deficient number, since it is larger than the sum of its proper divisors (21270746406454).

28871587443146 is a wasteful number, since it uses less digits than its factorization.

28871587443146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84136278.

The product of its digits is 289013760, while the sum is 68.

The spelling of 28871587443146 in words is "twenty-eight trillion, eight hundred seventy-one billion, five hundred eighty-seven million, four hundred forty-three thousand, one hundred forty-six".