43687056407 has 2 divisors, whose sum is σ = 43687056408. Its totient is φ = 43687056406.

The previous prime is 43687056367. The next prime is 43687056463. The reversal of 43687056407 is 70465078634.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43687056407 - 2²² = 43682862103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43687086407) 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, 21843528203 + 21843528204.

It is an arithmetic number, because the mean of its divisors is an integer number (21843528204).

Almost surely, 2^43687056407 is an apocalyptic number.

43687056407 is a deficient number, since it is larger than the sum of its proper divisors (1).

43687056407 is an equidigital number, since it uses as much as digits as its factorization.

43687056407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3386880, while the sum is 50.

The spelling of 43687056407 in words is "forty-three billion, six hundred eighty-seven million, fifty-six thousand, four hundred seven".