999549075103 has 8 divisors (see below), whose sum is σ = 1012815111168. Its totient is φ = 986312164824.

The previous prime is 999549075067. The next prime is 999549075113. The reversal of 999549075103 is 301570945999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 999549075103 - 2²⁵ = 999515520671 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 (999549075113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7212351 + ... + 7349632.

It is an arithmetic number, because the mean of its divisors is an integer number (126601888896).

Almost surely, 2^999549075103 is an apocalyptic number.

999549075103 is a deficient number, since it is larger than the sum of its proper divisors (13266036065).

999549075103 is a wasteful number, since it uses less digits than its factorization.

999549075103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14562893.

The product of its (nonzero) digits is 13778100, while the sum is 61.

The spelling of 999549075103 in words is "nine hundred ninety-nine billion, five hundred forty-nine million, seventy-five thousand, one hundred three".