43956987463 has 2 divisors, whose sum is σ = 43956987464. Its totient is φ = 43956987462.

The previous prime is 43956987391. The next prime is 43956987523. The reversal of 43956987463 is 36478965934.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43956987463 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43956987395 and 43956987404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43956927463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21978493731 + 21978493732.

It is an arithmetic number, because the mean of its divisors is an integer number (21978493732).

Almost surely, 2^43956987463 is an apocalyptic number.

43956987463 is a deficient number, since it is larger than the sum of its proper divisors (1).

43956987463 is an equidigital number, since it uses as much as digits as its factorization.

43956987463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117573120, while the sum is 64.

The spelling of 43956987463 in words is "forty-three billion, nine hundred fifty-six million, nine hundred eighty-seven thousand, four hundred sixty-three".