1421729811412 has 48 divisors (see below), whose sum is σ = 2510101440000. Its totient is φ = 704589185664.

The previous prime is 1421729811401. The next prime is 1421729811427. The reversal of 1421729811412 is 2141189271241.

It is a congruent number.

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, 483744639 + ... + 483747577.

It is an arithmetic number, because the mean of its divisors is an integer number (52293780000).

Almost surely, 2^{1421729811412} is an apocalyptic number.

It is an amenable number.

1421729811412 is a deficient number, since it is larger than the sum of its proper divisors (1088371628588).

1421729811412 is a wasteful number, since it uses less digits than its factorization.

1421729811412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5248 (or 5246 counting only the distinct ones).

The product of its digits is 64512, while the sum is 43.

The spelling of 1421729811412 in words is "one trillion, four hundred twenty-one billion, seven hundred twenty-nine million, eight hundred eleven thousand, four hundred twelve".