537456347205881 has 16 divisors (see below), whose sum is σ = 546843030189120. Its totient is φ = 528078923243520.

The previous prime is 537456347205859. The next prime is 537456347205907. The reversal of 537456347205881 is 188502743654735.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-537456347205881 is a prime.

It is a super-2 number, since 2×537456347205881² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (537456347225881) 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 15 ways as a sum of consecutive naturals, for example, 5081748041 + ... + 5081853801.

It is an arithmetic number, because the mean of its divisors is an integer number (34177689386820).

Almost surely, 2^{537456347205881} is an apocalyptic number.

It is an amenable number.

537456347205881 is a deficient number, since it is larger than the sum of its proper divisors (9386682983239).

537456347205881 is a wasteful number, since it uses less digits than its factorization.

537456347205881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148696.

The product of its (nonzero) digits is 677376000, while the sum is 68.

The spelling of 537456347205881 in words is "five hundred thirty-seven trillion, four hundred fifty-six billion, three hundred forty-seven million, two hundred five thousand, eight hundred eighty-one".