37813231873 has 4 divisors (see below), whose sum is σ = 37813678420. Its totient is φ = 37812785328.

The previous prime is 37813231871. The next prime is 37813231879.

37813231873 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 16019205489 + 21794026384 = 126567^2 + 147628^2 .

It is a cyclic number.

It is not a de Polignac number, because 37813231873 - 2¹ = 37813231871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37813231871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52938 + ... + 280051.

It is an arithmetic number, because the mean of its divisors is an integer number (9453419605).

Almost surely, 2^37813231873 is an apocalyptic number.

It is an amenable number.

37813231873 is a deficient number, since it is larger than the sum of its proper divisors (446547).

37813231873 is a wasteful number, since it uses less digits than its factorization.

37813231873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446546.

The product of its digits is 508032, while the sum is 46.

The spelling of 37813231873 in words is "thirty-seven billion, eight hundred thirteen million, two hundred thirty-one thousand, eight hundred seventy-three".