387929977269 has 8 divisors (see below), whose sum is σ = 518092097280. Its totient is φ = 258193921056.

The previous prime is 387929977207. The next prime is 387929977307. The reversal of 387929977269 is 962779929783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 387929977269 - 2²⁷ = 387795759541 is a prime.

It is a super-2 number, since 2×387929977269² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 387929977194 and 387929977203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387929907269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106513824 + ... + 106517465.

It is an arithmetic number, because the mean of its divisors is an integer number (64761512160).

Almost surely, 2^387929977269 is an apocalyptic number.

It is an amenable number.

387929977269 is a deficient number, since it is larger than the sum of its proper divisors (130162120011).

387929977269 is a wasteful number, since it uses less digits than its factorization.

387929977269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213031899.

The product of its digits is 1296243648, while the sum is 78.

The spelling of 387929977269 in words is "three hundred eighty-seven billion, nine hundred twenty-nine million, nine hundred seventy-seven thousand, two hundred sixty-nine".