3420424431157 has 2 divisors, whose sum is σ = 3420424431158. Its totient is φ = 3420424431156.

The previous prime is 3420424431097. The next prime is 3420424431161. The reversal of 3420424431157 is 7511344240243.

3420424431157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1838630233521 + 1581794197636 = 1355961^2 + 1257694^2 .

It is a cyclic number.

It is not a de Polignac number, because 3420424431157 - 2⁷ = 3420424431029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3420424441157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710212215578 + 1710212215579.

It is an arithmetic number, because the mean of its divisors is an integer number (1710212215579).

Almost surely, 2^{3420424431157} is an apocalyptic number.

It is an amenable number.

3420424431157 is a deficient number, since it is larger than the sum of its proper divisors (1).

3420424431157 is an equidigital number, since it uses as much as digits as its factorization.

3420424431157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 40.

The spelling of 3420424431157 in words is "three trillion, four hundred twenty billion, four hundred twenty-four million, four hundred thirty-one thousand, one hundred fifty-seven".