43453640615 has 64 divisors (see below), whose sum is σ = 66523742208. Its totient is φ = 26460009600.

The previous prime is 43453640599. The next prime is 43453640663. The reversal of 43453640615 is 51604635434.

It is not a de Polignac number, because 43453640615 - 2⁴ = 43453640599 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10619720 + ... + 10623810.

It is an arithmetic number, because the mean of its divisors is an integer number (1039433472).

Almost surely, 2^43453640615 is an apocalyptic number.

43453640615 is a deficient number, since it is larger than the sum of its proper divisors (23070101593).

43453640615 is a wasteful number, since it uses less digits than its factorization.

43453640615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4748.

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 43453640615 in words is "forty-three billion, four hundred fifty-three million, six hundred forty thousand, six hundred fifteen".