43930457813 has 16 divisors (see below), whose sum is σ = 48022873920. Its totient is φ = 39854601600.

The previous prime is 43930457803. The next prime is 43930457867. The reversal of 43930457813 is 31875403934.

It is not a de Polignac number, because 43930457813 - 2²² = 43926263509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43930457803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16759643 + ... + 16762263.

It is an arithmetic number, because the mean of its divisors is an integer number (3001429620).

Almost surely, 2^43930457813 is an apocalyptic number.

It is an amenable number.

43930457813 is a deficient number, since it is larger than the sum of its proper divisors (4092416107).

43930457813 is a wasteful number, since it uses less digits than its factorization.

43930457813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5188.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 43930457813 in words is "forty-three billion, nine hundred thirty million, four hundred fifty-seven thousand, eight hundred thirteen".