385038931551 has 8 divisors (see below), whose sum is σ = 525324433920. Its totient is φ = 250723025112.

The previous prime is 385038931531. The next prime is 385038931579. The reversal of 385038931551 is 155139830583.

It is a happy number.

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

It is not a de Polignac number, because 385038931551 - 2¹⁹ = 385038407263 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 385038931494 and 385038931503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385038931531) 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 7 ways as a sum of consecutive naturals, for example, 1492398831 + ... + 1492399088.

It is an arithmetic number, because the mean of its divisors is an integer number (65665554240).

Almost surely, 2^385038931551 is an apocalyptic number.

385038931551 is a deficient number, since it is larger than the sum of its proper divisors (140285502369).

385038931551 is a wasteful number, since it uses less digits than its factorization.

385038931551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2984797965.

The product of its (nonzero) digits is 1944000, while the sum is 51.

The spelling of 385038931551 in words is "three hundred eighty-five billion, thirty-eight million, nine hundred thirty-one thousand, five hundred fifty-one".