3985617510 has 48 divisors (see below), whose sum is σ = 11842979616. Its totient is φ = 910998144.

The previous prime is 3985617509. The next prime is 3985617529. The reversal of 3985617510 is 157165893.

It is a happy number.

3985617510 is a `hidden beast` number, since 3 + 9 + 8 + 561 + 75 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3162559 + ... + 3163818.

It is an arithmetic number, because the mean of its divisors is an integer number (246728742).

Almost surely, 2^3985617510 is an apocalyptic number.

3985617510 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3985617510 is an abundant number, since it is smaller than the sum of its proper divisors (7857362106).

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

3985617510 is a wasteful number, since it uses less digits than its factorization.

3985617510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6326397 (or 6326394 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 3985617510 is about 63131.7472433640. The cubic root of 3985617510 is about 1585.4962021207.

The spelling of 3985617510 in words is "three billion, nine hundred eighty-five million, six hundred seventeen thousand, five hundred ten".