3961980036 has 72 divisors (see below), whose sum is σ = 11639759040. Its totient is φ = 1112803776.

The previous prime is 3961980007. The next prime is 3961980047. The reversal of 3961980036 is 6300891693.

It is a super-2 number, since 2×3961980036² = 31394571611325122592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3961979973 and 3961980000.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118371 + ... + 148106.

It is an arithmetic number, because the mean of its divisors is an integer number (161663320).

Almost surely, 2^3961980036 is an apocalyptic number.

3961980036 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3961980036 is an abundant number, since it is smaller than the sum of its proper divisors (7677779004).

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

3961980036 is a wasteful number, since it uses less digits than its factorization.

3961980036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266553 (or 266548 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 3961980036 is about 62944.2613428738. The cubic root of 3961980036 is about 1582.3556215473.

The spelling of 3961980036 in words is "three billion, nine hundred sixty-one million, nine hundred eighty thousand, thirty-six".