111952982577 has 4 divisors (see below), whose sum is σ = 149270643440. Its totient is φ = 74635321716.

The previous prime is 111952982539. The next prime is 111952982587. The reversal of 111952982577 is 775289259111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 111952982577 - 2¹⁸ = 111952720433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111952982507) 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 3 ways as a sum of consecutive naturals, for example, 18658830427 + ... + 18658830432.

It is an arithmetic number, because the mean of its divisors is an integer number (37317660860).

Almost surely, 2^111952982577 is an apocalyptic number.

It is an amenable number.

111952982577 is a deficient number, since it is larger than the sum of its proper divisors (37317660863).

111952982577 is an equidigital number, since it uses as much as digits as its factorization.

111952982577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37317660862.

The product of its digits is 3175200, while the sum is 57.

The spelling of 111952982577 in words is "one hundred eleven billion, nine hundred fifty-two million, nine hundred eighty-two thousand, five hundred seventy-seven".