1642851796608 has 384 divisors, whose sum is σ = 5615901720000. Its totient is φ = 455366983680.

The previous prime is 1642851796601. The next prime is 1642851796723. The reversal of 1642851796608 is 8066971582461.

1642851796608 is a `hidden beast` number, since 1 + 6 + 4 + 2 + 8 + 5 + 17 + 9 + 6 + 608 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is not an unprimeable number, because it can be changed into a prime (1642851796601) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6864628 + ... + 7099916.

Almost surely, 2^{1642851796608} is an apocalyptic number.

1642851796608 is a gapful number since it is divisible by the number (18) 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 1642851796608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2807950860000).

1642851796608 is an abundant number, since it is smaller than the sum of its proper divisors (3973049923392).

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

1642851796608 is a wasteful number, since it uses less digits than its factorization.

1642851796608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235368 (or 235353 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 63.

The spelling of 1642851796608 in words is "one trillion, six hundred forty-two billion, eight hundred fifty-one million, seven hundred ninety-six thousand, six hundred eight".