43980725407 has 2 divisors, whose sum is σ = 43980725408. Its totient is φ = 43980725406.

The previous prime is 43980725377. The next prime is 43980725417. The reversal of 43980725407 is 70452708934.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43980725407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43980725417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21990362703 + 21990362704.

It is an arithmetic number, because the mean of its divisors is an integer number (21990362704).

Almost surely, 2^43980725407 is an apocalyptic number.

43980725407 is a deficient number, since it is larger than the sum of its proper divisors (1).

43980725407 is an equidigital number, since it uses as much as digits as its factorization.

43980725407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 43980725407 in words is "forty-three billion, nine hundred eighty million, seven hundred twenty-five thousand, four hundred seven".