37897858530797 has 2 divisors, whose sum is σ = 37897858530798. Its totient is φ = 37897858530796.

The previous prime is 37897858530767. The next prime is 37897858530799. The reversal of 37897858530797 is 79703585879873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37879765859716 + 18092671081 = 6154654^2 + 134509^2 .

It is an emirp because it is prime and its reverse (79703585879873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 37897858530797 - 2³⁸ = 37622980623853 is a prime.

Together with 37897858530799, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37897858530799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18948929265398 + 18948929265399.

It is an arithmetic number, because the mean of its divisors is an integer number (18948929265399).

Almost surely, 2^{37897858530797} is an apocalyptic number.

It is an amenable number.

37897858530797 is a deficient number, since it is larger than the sum of its proper divisors (1).

37897858530797 is an equidigital number, since it uses as much as digits as its factorization.

37897858530797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22404211200, while the sum is 86.

The spelling of 37897858530797 in words is "thirty-seven trillion, eight hundred ninety-seven billion, eight hundred fifty-eight million, five hundred thirty thousand, seven hundred ninety-seven".