537521339243 has 8 divisors (see below), whose sum is σ = 619746475488. Its totient is φ = 456655296384.

The previous prime is 537521339221. The next prime is 537521339261. The reversal of 537521339243 is 342933125735.

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

It is not a de Polignac number, because 537521339243 - 2²² = 537517144939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (537521339263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339772496 + ... + 339774077.

It is an arithmetic number, because the mean of its divisors is an integer number (77468309436).

Almost surely, 2^537521339243 is an apocalyptic number.

537521339243 is a deficient number, since it is larger than the sum of its proper divisors (82225136245).

537521339243 is a wasteful number, since it uses less digits than its factorization.

537521339243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679546693.

The product of its digits is 2041200, while the sum is 47.

The spelling of 537521339243 in words is "five hundred thirty-seven billion, five hundred twenty-one million, three hundred thirty-nine thousand, two hundred forty-three".