37897098930521 has 2 divisors, whose sum is σ = 37897098930522. Its totient is φ = 37897098930520.

The previous prime is 37897098930499. The next prime is 37897098930529. The reversal of 37897098930521 is 12503989079873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31394012417296 + 6503086513225 = 5603036^2 + 2550115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37897098930521 is a prime.

It is not a weakly prime, because it can be changed into another prime (37897098930529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18948549465260 + 18948549465261.

It is an arithmetic number, because the mean of its divisors is an integer number (18948549465261).

Almost surely, 2^{37897098930521} is an apocalyptic number.

It is an amenable number.

37897098930521 is a deficient number, since it is larger than the sum of its proper divisors (1).

37897098930521 is an equidigital number, since it uses as much as digits as its factorization.

37897098930521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 205752960, while the sum is 71.

The spelling of 37897098930521 in words is "thirty-seven trillion, eight hundred ninety-seven billion, ninety-eight million, nine hundred thirty thousand, five hundred twenty-one".