385982510540 has 48 divisors (see below), whose sum is σ = 898746789024. Its totient is φ = 138056332800.

The previous prime is 385982510513. The next prime is 385982510567. The reversal of 385982510540 is 45015289583.

It is an interprime number because it is at equal distance from previous prime (385982510513) and next prime (385982510567).

It is a super-2 number, since 2×385982510540² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 14367449 + ... + 14394288.

It is an arithmetic number, because the mean of its divisors is an integer number (18723891438).

Almost surely, 2^385982510540 is an apocalyptic number.

It is an amenable number.

385982510540 is an abundant number, since it is smaller than the sum of its proper divisors (512764278484).

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

385982510540 is a wasteful number, since it uses less digits than its factorization.

385982510540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28761818 (or 28761816 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 50.

The spelling of 385982510540 in words is "three hundred eighty-five billion, nine hundred eighty-two million, five hundred ten thousand, five hundred forty".