111587397378 has 32 divisors (see below), whose sum is σ = 224963843136. Its totient is φ = 36898400448.

The previous prime is 111587397377. The next prime is 111587397391. The reversal of 111587397378 is 873793785111.

It is not an unprimeable number, because it can be changed into a prime (111587397371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 480825 + ... + 674067.

It is an arithmetic number, because the mean of its divisors is an integer number (7030120098).

Almost surely, 2^111587397378 is an apocalyptic number.

111587397378 is an abundant number, since it is smaller than the sum of its proper divisors (113376445758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111587397378 is a wasteful number, since it uses less digits than its factorization.

111587397378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194018.

The product of its digits is 8890560, while the sum is 60.

The spelling of 111587397378 in words is "one hundred eleven billion, five hundred eighty-seven million, three hundred ninety-seven thousand, three hundred seventy-eight".