1642982140800 has 3072 divisors, whose sum is σ = 8191775692800. Its totient is φ = 313130188800.

The previous prime is 1642982140757. The next prime is 1642982140889. The reversal of 1642982140800 is 80412892461.

1642982140800 is a `hidden beast` number, since 1 + 6 + 429 + 8 + 2 + 140 + 80 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 10464854322 + ... + 10464854478.

It is an arithmetic number, because the mean of its divisors is an integer number (2666593650).

Almost surely, 2^{1642982140800} is an apocalyptic number.

1642982140800 is a gapful number since it is divisible by the number (10) 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 1642982140800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4095887846400).

1642982140800 is an abundant number, since it is smaller than the sum of its proper divisors (6548793552000).

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

1642982140800 is a wasteful number, since it uses less digits than its factorization.

1642982140800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 1642982140800 in words is "one trillion, six hundred forty-two billion, nine hundred eighty-two million, one hundred forty thousand, eight hundred".