1188948417653 has 8 divisors (see below), whose sum is σ = 1227858767616. Its totient is φ = 1150072891200.

The previous prime is 1188948417619. The next prime is 1188948417661. The reversal of 1188948417653 is 3567148498811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1188948417653 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 1188948417653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1188948417353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8636468 + ... + 8773053.

It is an arithmetic number, because the mean of its divisors is an integer number (153482345952).

Almost surely, 2^{1188948417653} is an apocalyptic number.

It is an amenable number.

1188948417653 is a deficient number, since it is larger than the sum of its proper divisors (38910349963).

1188948417653 is a wasteful number, since it uses less digits than its factorization.

1188948417653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17411755.

The product of its digits is 46448640, while the sum is 65.

The spelling of 1188948417653 in words is "one trillion, one hundred eighty-eight billion, nine hundred forty-eight million, four hundred seventeen thousand, six hundred fifty-three".