999676737172 has 48 divisors (see below), whose sum is σ = 1853138996352. Its totient is φ = 470869660800.

The previous prime is 999676737113. The next prime is 999676737251. The reversal of 999676737172 is 271737676999.

It is a junction number, because it is equal to n+sod(n) for n = 999676737095 and 999676737104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34337422 + ... + 34366522.

It is an arithmetic number, because the mean of its divisors is an integer number (38607062424).

Almost surely, 2^999676737172 is an apocalyptic number.

999676737172 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

999676737172 is a deficient number, since it is larger than the sum of its proper divisors (853462259180).

999676737172 is a wasteful number, since it uses less digits than its factorization.

999676737172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34768 (or 34766 counting only the distinct ones).

The product of its digits is 378071064, while the sum is 73.

The spelling of 999676737172 in words is "nine hundred ninety-nine billion, six hundred seventy-six million, seven hundred thirty-seven thousand, one hundred seventy-two".