385701686587 has 4 divisors (see below), whose sum is σ = 440801927536. Its totient is φ = 330601445640.

The previous prime is 385701686519. The next prime is 385701686593. The reversal of 385701686587 is 785686107583.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 385701686587 - 2¹⁹ = 385701162299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385701686987) 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 3 ways as a sum of consecutive naturals, for example, 27550120464 + ... + 27550120477.

It is an arithmetic number, because the mean of its divisors is an integer number (110200481884).

Almost surely, 2^385701686587 is an apocalyptic number.

385701686587 is a deficient number, since it is larger than the sum of its proper divisors (55100240949).

385701686587 is an equidigital number, since it uses as much as digits as its factorization.

385701686587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55100240948.

The product of its (nonzero) digits is 67737600, while the sum is 64.

The spelling of 385701686587 in words is "three hundred eighty-five billion, seven hundred one million, six hundred eighty-six thousand, five hundred eighty-seven".