3731276721373 has 2 divisors, whose sum is σ = 3731276721374. Its totient is φ = 3731276721372.

The previous prime is 3731276721353. The next prime is 3731276721377.

3731276721373 is nontrivially palindromic in base 10.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3630598700569 + 100678020804 = 1905413^2 + 317298^2 .

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3731276721373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3731276721373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3731276721377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1865638360686 + 1865638360687.

It is an arithmetic number, because the mean of its divisors is an integer number (1865638360687).

Almost surely, 2^{3731276721373} is an apocalyptic number.

It is an amenable number.

3731276721373 is a deficient number, since it is larger than the sum of its proper divisors (1).

3731276721373 is an equidigital number, since it uses as much as digits as its factorization.

3731276721373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4667544, while the sum is 52.

The spelling of 3731276721373 in words is "three trillion, seven hundred thirty-one billion, two hundred seventy-six million, seven hundred twenty-one thousand, three hundred seventy-three".