1189977498466 has 32 divisors (see below), whose sum is σ = 1835149155840. Its totient is φ = 578370240000.

The previous prime is 1189977498439. The next prime is 1189977498467. The reversal of 1189977498466 is 6648947799811.

It is not an unprimeable number, because it can be changed into a prime (1189977498467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27012490 + ... + 27056506.

It is an arithmetic number, because the mean of its divisors is an integer number (57348411120).

Almost surely, 2^{1189977498466} is an apocalyptic number.

1189977498466 is a deficient number, since it is larger than the sum of its proper divisors (645171657374).

1189977498466 is a wasteful number, since it uses less digits than its factorization.

1189977498466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45250.

The product of its digits is 1316818944, while the sum is 79.

The spelling of 1189977498466 in words is "one trillion, one hundred eighty-nine billion, nine hundred seventy-seven million, four hundred ninety-eight thousand, four hundred sixty-six".