43453640614 has 4 divisors (see below), whose sum is σ = 65180460924. Its totient is φ = 21726820306.

The previous prime is 43453640599. The next prime is 43453640663. The reversal of 43453640614 is 41604635434.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×43453640614² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent 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 as a sum of consecutive naturals, namely, 10863410152 + ... + 10863410155.

It is an arithmetic number, because the mean of its divisors is an integer number (16295115231).

Almost surely, 2^43453640614 is an apocalyptic number.

43453640614 is a deficient number, since it is larger than the sum of its proper divisors (21726820310).

43453640614 is a wasteful number, since it uses less digits than its factorization.

43453640614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21726820309.

The product of its (nonzero) digits is 414720, while the sum is 40.

The spelling of 43453640614 in words is "forty-three billion, four hundred fifty-three million, six hundred forty thousand, six hundred fourteen".