7374115644421 has 2 divisors, whose sum is σ = 7374115644422. Its totient is φ = 7374115644420.

The previous prime is 7374115644407. The next prime is 7374115644431. The reversal of 7374115644421 is 1244465114737.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6597577530625 + 776538113796 = 2568575^2 + 881214^2 .

It is a cyclic number.

It is not a de Polignac number, because 7374115644421 - 2³¹ = 7371968160773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7374115644431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3687057822210 + 3687057822211.

It is an arithmetic number, because the mean of its divisors is an integer number (3687057822211).

Almost surely, 2^{7374115644421} is an apocalyptic number.

It is an amenable number.

7374115644421 is a deficient number, since it is larger than the sum of its proper divisors (1).

7374115644421 is an equidigital number, since it uses as much as digits as its factorization.

7374115644421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2257920, while the sum is 49.

The spelling of 7374115644421 in words is "seven trillion, three hundred seventy-four billion, one hundred fifteen million, six hundred forty-four thousand, four hundred twenty-one".