384437540625 has 24 divisors (see below), whose sum is σ = 640688243328. Its totient is φ = 205033350000.

The previous prime is 384437540569. The next prime is 384437540629. The reversal of 384437540625 is 526045734483.

It is not a de Polignac number, because 384437540625 - 2¹¹ = 384437538577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (384437540629) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20493961 + ... + 20512710.

It is an arithmetic number, because the mean of its divisors is an integer number (26695343472).

Almost surely, 2^384437540625 is an apocalyptic number.

It is an amenable number.

384437540625 is a deficient number, since it is larger than the sum of its proper divisors (256250702703).

384437540625 is an frugal number, since it uses more digits than its factorization.

384437540625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41006699 (or 41006679 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 51.

The spelling of 384437540625 in words is "three hundred eighty-four billion, four hundred thirty-seven million, five hundred forty thousand, six hundred twenty-five".