3407994856943 has 2 divisors, whose sum is σ = 3407994856944. Its totient is φ = 3407994856942.

The previous prime is 3407994856907. The next prime is 3407994856991. The reversal of 3407994856943 is 3496584997043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3407994856943 - 2¹⁴ = 3407994840559 is a prime.

It is a super-2 number, since 2×3407994856943² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3407994850943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1703997428471 + 1703997428472.

It is an arithmetic number, because the mean of its divisors is an integer number (1703997428472).

Almost surely, 2^{3407994856943} is an apocalyptic number.

3407994856943 is a deficient number, since it is larger than the sum of its proper divisors (1).

3407994856943 is an equidigital number, since it uses as much as digits as its factorization.

3407994856943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 705438720, while the sum is 71.

The spelling of 3407994856943 in words is "three trillion, four hundred seven billion, nine hundred ninety-four million, eight hundred fifty-six thousand, nine hundred forty-three".