3962386391040 has 3584 divisors, whose sum is σ = 19326173184000. Its totient is φ = 745301606400.

The previous prime is 3962386390967. The next prime is 3962386391083. The reversal of 3962386391040 is 401936832693.

3962386391040 is a `hidden beast` number, since 3 + 9 + 623 + 8 + 6 + 3 + 9 + 1 + 0 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3584).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 50156789721 + ... + 50156789799.

Almost surely, 2^{3962386391040} is an apocalyptic number.

3962386391040 is a gapful number since it is divisible by the number (30) 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 3962386391040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9663086592000).

3962386391040 is an abundant number, since it is smaller than the sum of its proper divisors (15363786792960).

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

3962386391040 is a wasteful number, since it uses less digits than its factorization.

3962386391040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 54.

The spelling of 3962386391040 in words is "three trillion, nine hundred sixty-two billion, three hundred eighty-six million, three hundred ninety-one thousand, forty".