537351818 has 4 divisors (see below), whose sum is σ = 806027730. Its totient is φ = 268675908.

The previous prime is 537351769. The next prime is 537351821. The reversal of 537351818 is 818153735.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 458088409 + 79263409 = 21403^2 + 8903^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134337953 + ... + 134337956.

Almost surely, 2^537351818 is an apocalyptic number.

537351818 is a deficient number, since it is larger than the sum of its proper divisors (268675912).

537351818 is a wasteful number, since it uses less digits than its factorization.

537351818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268675911.

The product of its digits is 100800, while the sum is 41.

The square root of 537351818 is about 23180.8502432504. The cubic root of 537351818 is about 812.9919415493.

The spelling of 537351818 in words is "five hundred thirty-seven million, three hundred fifty-one thousand, eight hundred eighteen".