3962398871040 has 80 divisors (see below), whose sum is σ = 12667293915408. Its totient is φ = 1056639696896.

The previous prime is 3962398871033. The next prime is 3962398871087. The reversal of 3962398871040 is 401788932693.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257960997 + ... + 257976356.

Almost surely, 2^{3962398871040} is an apocalyptic number.

3962398871040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3962398871040 is an abundant number, since it is smaller than the sum of its proper divisors (8704895044368).

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

3962398871040 is an equidigital number, since it uses as much as digits as its factorization.

3962398871040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515937379 (or 515937363 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 60.

The spelling of 3962398871040 in words is "three trillion, nine hundred sixty-two billion, three hundred ninety-eight million, eight hundred seventy-one thousand, forty".