3961930837440 has 112 divisors (see below), whose sum is σ = 12592941235200. Its totient is φ = 1055354926080.

The previous prime is 3961930837439. The next prime is 3961930837457. The reversal of 3961930837440 is 447380391693.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1390540 + ... + 3139659.

Almost surely, 2^{3961930837440} is an apocalyptic number.

3961930837440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3961930837440 is an abundant number, since it is smaller than the sum of its proper divisors (8631010397760).

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

3961930837440 is a wasteful number, since it uses less digits than its factorization.

3961930837440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531130 (or 4531120 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 57.

The spelling of 3961930837440 in words is "three trillion, nine hundred sixty-one billion, nine hundred thirty million, eight hundred thirty-seven thousand, four hundred forty".