3974817368508 has 144 divisors (see below), whose sum is σ = 11195736572160. Its totient is φ = 1075025530368.

The previous prime is 3974817368453. The next prime is 3974817368551. The reversal of 3974817368508 is 8058637184793.

It is a super-2 number, since 2×3974817368508² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38125860 + ... + 38229972.

It is an arithmetic number, because the mean of its divisors is an integer number (77748170640).

Almost surely, 2^{3974817368508} is an apocalyptic number.

3974817368508 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3974817368508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5597868286080).

3974817368508 is an abundant number, since it is smaller than the sum of its proper divisors (7220919203652).

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

3974817368508 is a wasteful number, since it uses less digits than its factorization.

3974817368508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105424 (or 105403 counting only the distinct ones).

The product of its (nonzero) digits is 243855360, while the sum is 69.

The spelling of 3974817368508 in words is "three trillion, nine hundred seventy-four billion, eight hundred seventeen million, three hundred sixty-eight thousand, five hundred eight".