385439752987 has 4 divisors (see below), whose sum is σ = 385445735136. Its totient is φ = 385433770840.

The previous prime is 385439752939. The next prime is 385439753003. The reversal of 385439752987 is 789257934583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 789257934583 = 9721 ⋅81191023.

It is a cyclic number.

It is not a de Polignac number, because 385439752987 - 2¹⁵ = 385439720219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385439752787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2893363 + ... + 3023644.

It is an arithmetic number, because the mean of its divisors is an integer number (96361433784).

Almost surely, 2^385439752987 is an apocalyptic number.

385439752987 is a deficient number, since it is larger than the sum of its proper divisors (5982149).

385439752987 is an equidigital number, since it uses as much as digits as its factorization.

385439752987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5982148.

The product of its digits is 457228800, while the sum is 70.

The spelling of 385439752987 in words is "three hundred eighty-five billion, four hundred thirty-nine million, seven hundred fifty-two thousand, nine hundred eighty-seven".