385978036237 has 4 divisors (see below), whose sum is σ = 385989332380. Its totient is φ = 385966740096.

The previous prime is 385978036219. The next prime is 385978036259. The reversal of 385978036237 is 732630879583.

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

It can be written as a sum of positive squares in 2 ways, for example, as 214868404521 + 171109631716 = 463539^2 + 413654^2 .

It is a cyclic number.

It is not a de Polignac number, because 385978036237 - 2⁷ = 385978036109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385978036217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5596662 + ... + 5665207.

It is an arithmetic number, because the mean of its divisors is an integer number (96497333095).

Almost surely, 2^385978036237 is an apocalyptic number.

It is an amenable number.

385978036237 is a deficient number, since it is larger than the sum of its proper divisors (11296143).

385978036237 is a wasteful number, since it uses less digits than its factorization.

385978036237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11296142.

The product of its (nonzero) digits is 45722880, while the sum is 61.

The spelling of 385978036237 in words is "three hundred eighty-five billion, nine hundred seventy-eight million, thirty-six thousand, two hundred thirty-seven".