1289177474916 has 12 divisors (see below), whose sum is σ = 3008080774832. Its totient is φ = 429725824968.

The previous prime is 1289177474911. The next prime is 1289177474917. The reversal of 1289177474916 is 6194747719821.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1289177474911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53715728110 + ... + 53715728133.

Almost surely, 2^{1289177474916} is an apocalyptic number.

It is an amenable number.

1289177474916 is an abundant number, since it is smaller than the sum of its proper divisors (1718903299916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1289177474916 is a wasteful number, since it uses less digits than its factorization.

1289177474916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107431456250 (or 107431456248 counting only the distinct ones).

The product of its digits is 42674688, while the sum is 66.

The spelling of 1289177474916 in words is "one trillion, two hundred eighty-nine billion, one hundred seventy-seven million, four hundred seventy-four thousand, nine hundred sixteen".