43613657087 has 48 divisors (see below), whose sum is σ = 59587515456. Its totient is φ = 31059072000.

The previous prime is 43613657083. The next prime is 43613657089. The reversal of 43613657087 is 78075631634.

It is not a de Polignac number, because 43613657087 - 2² = 43613657083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43613657083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1092503 + ... + 1131719.

It is an arithmetic number, because the mean of its divisors is an integer number (1241406572).

Almost surely, 2^43613657087 is an apocalyptic number.

43613657087 is a deficient number, since it is larger than the sum of its proper divisors (15973858369).

43613657087 is a wasteful number, since it uses less digits than its factorization.

43613657087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39360 (or 39349 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 43613657087 in words is "forty-three billion, six hundred thirteen million, six hundred fifty-seven thousand, eighty-seven".