999999949013958 has 32 divisors (see below), whose sum is σ = 2064517820024832. Its totient is φ = 322580348049600.

The previous prime is 999999949013941. The next prime is 999999949013959. The reversal of 999999949013958 is 859310949999999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999999949013959) 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, 376687503 + ... + 379332933.

It is an arithmetic number, because the mean of its divisors is an integer number (64516181875776).

Almost surely, 2^{999999949013958} is an apocalyptic number.

999999949013958 is an abundant number, since it is smaller than the sum of its proper divisors (1064517871010874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

999999949013958 is a wasteful number, since it uses less digits than its factorization.

999999949013958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4677780.

The product of its (nonzero) digits is 185961834720, while the sum is 102.

The spelling of 999999949013958 in words is "nine hundred ninety-nine trillion, nine hundred ninety-nine billion, nine hundred forty-nine million, thirteen thousand, nine hundred fifty-eight".