994408172259 has 32 divisors (see below), whose sum is σ = 1364229216000. Its totient is φ = 644035459584.

The previous prime is 994408172257. The next prime is 994408172293. The reversal of 994408172259 is 952271804499.

It is not a de Polignac number, because 994408172259 - 2¹ = 994408172257 is a prime.

It is a super-2 number, since 2×994408172259² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (994408172257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31285327 + ... + 31317095.

It is an arithmetic number, because the mean of its divisors is an integer number (42632163000).

Almost surely, 2^994408172259 is an apocalyptic number.

994408172259 is a deficient number, since it is larger than the sum of its proper divisors (369821043741).

994408172259 is a wasteful number, since it uses less digits than its factorization.

994408172259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33907.

The product of its (nonzero) digits is 13063680, while the sum is 60.

The spelling of 994408172259 in words is "nine hundred ninety-four billion, four hundred eight million, one hundred seventy-two thousand, two hundred fifty-nine".