1183881827957 has 16 divisors (see below), whose sum is σ = 1228063514352. Its totient is φ = 1140344179200.

The previous prime is 1183881827941. The next prime is 1183881828023. The reversal of 1183881827957 is 7597281883811.

It can be written as a sum of positive squares in 8 ways, for example, as 871327035601 + 312554792356 = 933449^2 + 559066^2 .

It is a cyclic number.

It is not a de Polignac number, because 1183881827957 - 2⁴ = 1183881827941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1183881827927) 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, 46897943 + ... + 46923179.

It is an arithmetic number, because the mean of its divisors is an integer number (76753969647).

Almost surely, 2^{1183881827957} is an apocalyptic number.

It is an amenable number.

1183881827957 is a deficient number, since it is larger than the sum of its proper divisors (44181686395).

1183881827957 is a wasteful number, since it uses less digits than its factorization.

1183881827957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37928.

The product of its digits is 54190080, while the sum is 68.

The spelling of 1183881827957 in words is "one trillion, one hundred eighty-three billion, eight hundred eighty-one million, eight hundred twenty-seven thousand, nine hundred fifty-seven".