247669973999 has 16 divisors (see below), whose sum is σ = 293584473600. Its totient is φ = 204427377504.

The previous prime is 247669973989. The next prime is 247669974001. The reversal of 247669973999 is 999379966742.

It is not a de Polignac number, because 247669973999 - 2⁸ = 247669973743 is a prime.

It is a super-2 number, since 2×247669973999² (a number of 24 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 (247669973989) 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, 1532627 + ... + 1686500.

It is an arithmetic number, because the mean of its divisors is an integer number (18349029600).

Almost surely, 2^247669973999 is an apocalyptic number.

247669973999 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

247669973999 is a deficient number, since it is larger than the sum of its proper divisors (45914499601).

247669973999 is a wasteful number, since it uses less digits than its factorization.

247669973999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3219542.

The product of its digits is 2499898464, while the sum is 80.

The spelling of 247669973999 in words is "two hundred forty-seven billion, six hundred sixty-nine million, nine hundred seventy-three thousand, nine hundred ninety-nine".