37521083818 has 4 divisors (see below), whose sum is σ = 56281625730. Its totient is φ = 18760541908.

The previous prime is 37521083813. The next prime is 37521083857. The reversal of 37521083818 is 81838012573.

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., 36589186089 + 931897729 = 191283^2 + 30527^2 .

It is not an unprimeable number, because it can be changed into a prime (37521083813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9380270953 + ... + 9380270956.

Almost surely, 2^37521083818 is an apocalyptic number.

37521083818 is a deficient number, since it is larger than the sum of its proper divisors (18760541912).

37521083818 is a wasteful number, since it uses less digits than its factorization.

37521083818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18760541911.

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 37521083818 in words is "thirty-seven billion, five hundred twenty-one million, eighty-three thousand, eight hundred eighteen".