43686712490 has 16 divisors (see below), whose sum is σ = 81172730880. Its totient is φ = 16910985360.

The previous prime is 43686712471. The next prime is 43686712507. The reversal of 43686712490 is 9421768634.

It is a Curzon number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 70462130 + ... + 70462749.

It is an arithmetic number, because the mean of its divisors is an integer number (5073295680).

Almost surely, 2^43686712490 is an apocalyptic number.

43686712490 is a deficient number, since it is larger than the sum of its proper divisors (37486018390).

43686712490 is a wasteful number, since it uses less digits than its factorization.

43686712490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140924917.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 43686712490 in words is "forty-three billion, six hundred eighty-six million, seven hundred twelve thousand, four hundred ninety".