385012517800 has 24 divisors (see below), whose sum is σ = 895154104350. Its totient is φ = 154005007040.

The previous prime is 385012517713. The next prime is 385012517803. The reversal of 385012517800 is 8715210583.

It can be written as a sum of positive squares in 3 ways, for example, as 253578716356 + 131433801444 = 503566^2 + 362538^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (385012517803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 962531095 + ... + 962531494.

Almost surely, 2^385012517800 is an apocalyptic number.

It is an amenable number.

385012517800 is an abundant number, since it is smaller than the sum of its proper divisors (510141586550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385012517800 is a wasteful number, since it uses less digits than its factorization.

385012517800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925062605 (or 1925062596 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 40.

The spelling of 385012517800 in words is "three hundred eighty-five billion, twelve million, five hundred seventeen thousand, eight hundred".