537645819 has 16 divisors (see below), whose sum is σ = 754156800. Its totient is φ = 340202016.

The previous prime is 537645733. The next prime is 537645821. The reversal of 537645819 is 918546735.

537645819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 537645819 - 2¹⁵ = 537613051 is a prime.

It is a super-2 number, since 2×537645819² = 578126053376361522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (537640819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47239 + ... + 57504.

It is an arithmetic number, because the mean of its divisors is an integer number (47134800).

Almost surely, 2^537645819 is an apocalyptic number.

537645819 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

537645819 is a deficient number, since it is larger than the sum of its proper divisors (216510981).

537645819 is a wasteful number, since it uses less digits than its factorization.

537645819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104834.

The product of its digits is 907200, while the sum is 48.

The square root of 537645819 is about 23187.1908389093. The cubic root of 537645819 is about 813.1401851253.

The spelling of 537645819 in words is "five hundred thirty-seven million, six hundred forty-five thousand, eight hundred nineteen".