1189896487946 has 16 divisors (see below), whose sum is σ = 1802984254848. Its totient is φ = 588904794000.

The previous prime is 1189896487937. The next prime is 1189896487951. The reversal of 1189896487946 is 6497846989811.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17891 + ... + 1542761.

It is an arithmetic number, because the mean of its divisors is an integer number (112686515928).

Almost surely, 2^{1189896487946} is an apocalyptic number.

1189896487946 is a deficient number, since it is larger than the sum of its proper divisors (613087766902).

1189896487946 is a wasteful number, since it uses less digits than its factorization.

1189896487946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528837.

The product of its digits is 1504935936, while the sum is 80.

The spelling of 1189896487946 in words is "one trillion, one hundred eighty-nine billion, eight hundred ninety-six million, four hundred eighty-seven thousand, nine hundred forty-six".