3445651421 has 2 divisors, whose sum is σ = 3445651422. Its totient is φ = 3445651420.

The previous prime is 3445651337. The next prime is 3445651427. The reversal of 3445651421 is 1241565443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2317363321 + 1128288100 = 48139^2 + 33590^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3445651421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3445651427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1722825710 + 1722825711.

It is an arithmetic number, because the mean of its divisors is an integer number (1722825711).

Almost surely, 2^3445651421 is an apocalyptic number.

It is an amenable number.

3445651421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3445651421 is an equidigital number, since it uses as much as digits as its factorization.

3445651421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 35.

The square root of 3445651421 is about 58699.6713874959. The cubic root of 3445651421 is about 1510.3946779085.

The spelling of 3445651421 in words is "three billion, four hundred forty-five million, six hundred fifty-one thousand, four hundred twenty-one".