385709829837 has 16 divisors (see below), whose sum is σ = 523018812480. Its totient is φ = 252770740992.

The previous prime is 385709829797. The next prime is 385709829847. The reversal of 385709829837 is 738928907583.

It is not a de Polignac number, because 385709829837 - 2³² = 381414862541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385709829847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7851483 + ... + 7900455.

It is an arithmetic number, because the mean of its divisors is an integer number (32688675780).

Almost surely, 2^385709829837 is an apocalyptic number.

It is an amenable number.

385709829837 is a deficient number, since it is larger than the sum of its proper divisors (137308982643).

385709829837 is a wasteful number, since it uses less digits than its factorization.

385709829837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93532.

The product of its (nonzero) digits is 182891520, while the sum is 69.

The spelling of 385709829837 in words is "three hundred eighty-five billion, seven hundred nine million, eight hundred twenty-nine thousand, eight hundred thirty-seven".