43990649103 has 4 divisors (see below), whose sum is σ = 58654198808. Its totient is φ = 29327099400.

The previous prime is 43990649071. The next prime is 43990649117. The reversal of 43990649103 is 30194609934.

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

It is not a de Polignac number, because 43990649103 - 2⁵ = 43990649071 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 (43990649123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7331774848 + ... + 7331774853.

It is an arithmetic number, because the mean of its divisors is an integer number (14663549702).

Almost surely, 2^43990649103 is an apocalyptic number.

43990649103 is a deficient number, since it is larger than the sum of its proper divisors (14663549705).

43990649103 is a wasteful number, since it uses less digits than its factorization.

43990649103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14663549704.

The product of its (nonzero) digits is 629856, while the sum is 48.

The spelling of 43990649103 in words is "forty-three billion, nine hundred ninety million, six hundred forty-nine thousand, one hundred three".