1158278597228 has 24 divisors (see below), whose sum is σ = 2030078066688. Its totient is φ = 578256573776.

The previous prime is 1158278597173. The next prime is 1158278597263. The reversal of 1158278597228 is 8227958728511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18225275 + ... + 18288717.

It is an arithmetic number, because the mean of its divisors is an integer number (84586586112).

Almost surely, 2^{1158278597228} is an apocalyptic number.

It is an amenable number.

1158278597228 is a deficient number, since it is larger than the sum of its proper divisors (871799469460).

1158278597228 is a wasteful number, since it uses less digits than its factorization.

1158278597228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70333 (or 70331 counting only the distinct ones).

The product of its digits is 45158400, while the sum is 65.

The spelling of 1158278597228 in words is "one trillion, one hundred fifty-eight billion, two hundred seventy-eight million, five hundred ninety-seven thousand, two hundred twenty-eight".