3821422257840 has 80 divisors (see below), whose sum is σ = 12923355280896. Its totient is φ = 926405395200.

The previous prime is 3821422257733. The next prime is 3821422257857. The reversal of 3821422257840 is 487522241283.

3821422257840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (48).

It is a self number, because there is not a number n which added to its sum of digits gives 3821422257840.

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, 723751576 + ... + 723756855.

Almost surely, 2^{3821422257840} is an apocalyptic number.

3821422257840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3821422257840 is an abundant number, since it is smaller than the sum of its proper divisors (9101933023056).

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

3821422257840 is a wasteful number, since it uses less digits than its factorization.

3821422257840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447508458 (or 1447508452 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 48.

The spelling of 3821422257840 in words is "three trillion, eight hundred twenty-one billion, four hundred twenty-two million, two hundred fifty-seven thousand, eight hundred forty".