1179769817955 has 16 divisors (see below), whose sum is σ = 1889167646880. Its totient is φ = 628698590208.

The previous prime is 1179769817951. The next prime is 1179769817957. The reversal of 1179769817955 is 5597189679711.

It is not a de Polignac number, because 1179769817955 - 2² = 1179769817951 is a prime.

It is a super-3 number, since 3×1179769817955³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1179769817951) 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, 31979662 + ... + 32016531.

It is an arithmetic number, because the mean of its divisors is an integer number (118072977930).

Almost surely, 2^{1179769817955} is an apocalyptic number.

1179769817955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1179769817955 is a deficient number, since it is larger than the sum of its proper divisors (709397828925).

1179769817955 is a wasteful number, since it uses less digits than its factorization.

1179769817955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63997430.

The product of its digits is 300056400, while the sum is 75.

The spelling of 1179769817955 in words is "one trillion, one hundred seventy-nine billion, seven hundred sixty-nine million, eight hundred seventeen thousand, nine hundred fifty-five".