1188268854905 has 16 divisors (see below), whose sum is σ = 1577461143168. Its totient is φ = 852023760000.

The previous prime is 1188268854901. The next prime is 1188268854919. The reversal of 1188268854905 is 5094588628811.

It is not a de Polignac number, because 1188268854905 - 2² = 1188268854901 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1188268854901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152143196 + ... + 152151005.

It is an arithmetic number, because the mean of its divisors is an integer number (98591321448).

Almost surely, 2^{1188268854905} is an apocalyptic number.

It is an amenable number.

1188268854905 is a deficient number, since it is larger than the sum of its proper divisors (389192288263).

1188268854905 is a wasteful number, since it uses less digits than its factorization.

1188268854905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304294288.

The product of its (nonzero) digits is 44236800, while the sum is 65.

The spelling of 1188268854905 in words is "one trillion, one hundred eighty-eight billion, two hundred sixty-eight million, eight hundred fifty-four thousand, nine hundred five".