1421367544437 has 8 divisors (see below), whose sum is σ = 1909623571680. Its totient is φ = 940344940080.

The previous prime is 1421367544417. The next prime is 1421367544459. The reversal of 1421367544437 is 7344457631241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1421367544437 - 2²⁸ = 1421099108981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1421367544437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421367544417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1808355262 + ... + 1808356047.

It is an arithmetic number, because the mean of its divisors is an integer number (238702946460).

Almost surely, 2^{1421367544437} is an apocalyptic number.

It is an amenable number.

1421367544437 is a deficient number, since it is larger than the sum of its proper divisors (488256027243).

1421367544437 is a wasteful number, since it uses less digits than its factorization.

1421367544437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3616711443.

The product of its digits is 6773760, while the sum is 51.

The spelling of 1421367544437 in words is "one trillion, four hundred twenty-one billion, three hundred sixty-seven million, five hundred forty-four thousand, four hundred thirty-seven".