1289012166372 has 48 divisors (see below), whose sum is σ = 3438293371520. Its totient is φ = 368189805312.

The previous prime is 1289012166361. The next prime is 1289012166413. The reversal of 1289012166372 is 2736612109821.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1757113 + ... + 2380224.

Almost surely, 2^{1289012166372} is an apocalyptic number.

1289012166372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1289012166372 is an abundant number, since it is smaller than the sum of its proper divisors (2149281205148).

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

1289012166372 is a wasteful number, since it uses less digits than its factorization.

1289012166372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4141060 (or 4141058 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 1289012166372 in words is "one trillion, two hundred eighty-nine billion, twelve million, one hundred sixty-six thousand, three hundred seventy-two".