999352626749 has 16 divisors (see below), whose sum is σ = 1068629177280. Its totient is φ = 931769879040.

The previous prime is 999352626737. The next prime is 999352626793. The reversal of 999352626749 is 947626253999.

It is not a de Polignac number, because 999352626749 - 2¹⁶ = 999352561213 is a prime.

It is a super-2 number, since 2×999352626749² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999352629749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1032269 + ... + 1750509.

It is an arithmetic number, because the mean of its divisors is an integer number (66789323580).

Almost surely, 2^999352626749 is an apocalyptic number.

It is an amenable number.

999352626749 is a deficient number, since it is larger than the sum of its proper divisors (69276550531).

999352626749 is a wasteful number, since it uses less digits than its factorization.

999352626749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719420.

The product of its digits is 396809280, while the sum is 71.

The spelling of 999352626749 in words is "nine hundred ninety-nine billion, three hundred fifty-two million, six hundred twenty-six thousand, seven hundred forty-nine".