1188870748217 has 16 divisors (see below), whose sum is σ = 1272161493120. Its totient is φ = 1107657763200.

The previous prime is 1188870748211. The next prime is 1188870748223. The reversal of 1188870748217 is 7128470788811.

It is an interprime number because it is at equal distance from previous prime (1188870748211) and next prime (1188870748223).

It is a cyclic number.

It is not a de Polignac number, because 1188870748217 - 2¹⁸ = 1188870486073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1188870748217.

It is not an unprimeable number, because it can be changed into a prime (1188870748211) 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, 7479188 + ... + 7636490.

It is an arithmetic number, because the mean of its divisors is an integer number (79510093320).

Almost surely, 2^{1188870748217} is an apocalyptic number.

It is an amenable number.

1188870748217 is a deficient number, since it is larger than the sum of its proper divisors (83290744903).

1188870748217 is a wasteful number, since it uses less digits than its factorization.

1188870748217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163904.

The product of its (nonzero) digits is 11239424, while the sum is 62.

The spelling of 1188870748217 in words is "one trillion, one hundred eighty-eight billion, eight hundred seventy million, seven hundred forty-eight thousand, two hundred seventeen".