387953279999 has 16 divisors (see below), whose sum is σ = 405641607168. Its totient is φ = 370333842912.

The previous prime is 387953279993. The next prime is 387953280059. The reversal of 387953279999 is 999972359783.

It is a cyclic number.

It is not a de Polignac number, because 387953279999 - 2⁴ = 387953279983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387953279993) 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, 72552644 + ... + 72557990.

It is an arithmetic number, because the mean of its divisors is an integer number (25352600448).

Almost surely, 2^387953279999 is an apocalyptic number.

387953279999 is a deficient number, since it is larger than the sum of its proper divisors (17688327169).

387953279999 is a wasteful number, since it uses less digits than its factorization.

387953279999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11174.

The product of its digits is 2083248720, while the sum is 80.

The spelling of 387953279999 in words is "three hundred eighty-seven billion, nine hundred fifty-three million, two hundred seventy-nine thousand, nine hundred ninety-nine".