37812031093 has 2 divisors, whose sum is σ = 37812031094. Its totient is φ = 37812031092.

The previous prime is 37812031087. The next prime is 37812031111. The reversal of 37812031093 is 39013021873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35714574289 + 2097456804 = 188983^2 + 45798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37812031093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37812031393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18906015546 + 18906015547.

It is an arithmetic number, because the mean of its divisors is an integer number (18906015547).

Almost surely, 2^37812031093 is an apocalyptic number.

It is an amenable number.

37812031093 is a deficient number, since it is larger than the sum of its proper divisors (1).

37812031093 is an equidigital number, since it uses as much as digits as its factorization.

37812031093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 37812031093 in words is "thirty-seven billion, eight hundred twelve million, thirty-one thousand, ninety-three".