1188861657979 has 2 divisors, whose sum is σ = 1188861657980. Its totient is φ = 1188861657978.

The previous prime is 1188861657967. The next prime is 1188861658073. The reversal of 1188861657979 is 9797561688811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1188861657979 - 2²³ = 1188853269371 is a prime.

It is a super-3 number, since 3×1188861657979³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1188861651979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594430828989 + 594430828990.

It is an arithmetic number, because the mean of its divisors is an integer number (594430828990).

Almost surely, 2^{1188861657979} is an apocalyptic number.

1188861657979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1188861657979 is an equidigital number, since it uses as much as digits as its factorization.

1188861657979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 365783040, while the sum is 76.

The spelling of 1188861657979 in words is "one trillion, one hundred eighty-eight billion, eight hundred sixty-one million, six hundred fifty-seven thousand, nine hundred seventy-nine".