37343801770721 has 2 divisors, whose sum is σ = 37343801770722. Its totient is φ = 37343801770720.

The previous prime is 37343801770687. The next prime is 37343801770739. The reversal of 37343801770721 is 12707710834373.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37200057664225 + 143744106496 = 6099185^2 + 379136^2 .

It is an emirp because it is prime and its reverse (12707710834373) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 37343801770721 - 2¹⁰ = 37343801769697 is a prime.

It is not a weakly prime, because it can be changed into another prime (37343801778721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18671900885360 + 18671900885361.

It is an arithmetic number, because the mean of its divisors is an integer number (18671900885361).

Almost surely, 2^{37343801770721} is an apocalyptic number.

It is an amenable number.

37343801770721 is a deficient number, since it is larger than the sum of its proper divisors (1).

37343801770721 is an equidigital number, since it uses as much as digits as its factorization.

37343801770721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4148928, while the sum is 53.

The spelling of 37343801770721 in words is "thirty-seven trillion, three hundred forty-three billion, eight hundred one million, seven hundred seventy thousand, seven hundred twenty-one".