3765274773121 has 4 divisors (see below), whose sum is σ = 3765374424000. Its totient is φ = 3765175122244.

The previous prime is 3765274773053. The next prime is 3765274773179. The reversal of 3765274773121 is 1213774725673.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3765274773121 - 2¹⁹ = 3765274248833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3765274773721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49768741 + ... + 49844338.

It is an arithmetic number, because the mean of its divisors is an integer number (941343606000).

Almost surely, 2^{3765274773121} is an apocalyptic number.

It is an amenable number.

3765274773121 is a deficient number, since it is larger than the sum of its proper divisors (99650879).

3765274773121 is an equidigital number, since it uses as much as digits as its factorization.

3765274773121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99650878.

The product of its digits is 10372320, while the sum is 55.

The spelling of 3765274773121 in words is "three trillion, seven hundred sixty-five billion, two hundred seventy-four million, seven hundred seventy-three thousand, one hundred twenty-one".