1026865085412 has 72 divisors (see below), whose sum is σ = 2416428637056. Its totient is φ = 339393828864.

The previous prime is 1026865085387. The next prime is 1026865085423. The reversal of 1026865085412 is 2145805686201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141691573 + ... + 141698819.

It is an arithmetic number, because the mean of its divisors is an integer number (33561508848).

Almost surely, 2^{1026865085412} is an apocalyptic number.

1026865085412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1026865085412 is an abundant number, since it is smaller than the sum of its proper divisors (1389563551644).

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

1026865085412 is a wasteful number, since it uses less digits than its factorization.

1026865085412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7957 (or 7762 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 48.

The spelling of 1026865085412 in words is "one trillion, twenty-six billion, eight hundred sixty-five million, eighty-five thousand, four hundred twelve".