537343111921 has 8 divisors (see below), whose sum is σ = 669934269504. Its totient is φ = 418708918320.

The previous prime is 537343111913. The next prime is 537343111939. The reversal of 537343111921 is 129111343735.

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

It is not a de Polignac number, because 537343111921 - 2³ = 537343111913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (537343117921) 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, 3489240910 + ... + 3489241063.

It is an arithmetic number, because the mean of its divisors is an integer number (83741783688).

Almost surely, 2^537343111921 is an apocalyptic number.

It is an amenable number.

537343111921 is a deficient number, since it is larger than the sum of its proper divisors (132591157583).

537343111921 is a wasteful number, since it uses less digits than its factorization.

537343111921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6978481991.

The product of its digits is 68040, while the sum is 40.

The spelling of 537343111921 in words is "five hundred thirty-seven billion, three hundred forty-three million, one hundred eleven thousand, nine hundred twenty-one".