1642421452401 has 32 divisors (see below), whose sum is σ = 2446655777280. Its totient is φ = 1088905120128.

The previous prime is 1642421452367. The next prime is 1642421452459. The reversal of 1642421452401 is 1042541242461.

1642421452401 is a `hidden beast` number, since 1 + 6 + 4 + 242 + 1 + 4 + 5 + 2 + 401 = 666.

It is not a de Polignac number, because 1642421452401 - 2¹¹ = 1642421450353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1642421452201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12097045 + ... + 12232061.

It is an arithmetic number, because the mean of its divisors is an integer number (76457993040).

Almost surely, 2^{1642421452401} is an apocalyptic number.

It is an amenable number.

1642421452401 is a deficient number, since it is larger than the sum of its proper divisors (804234324879).

1642421452401 is a wasteful number, since it uses less digits than its factorization.

1642421452401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137510 (or 137504 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

Adding to 1642421452401 its reverse (1042541242461), we get a palindrome (2684962694862).

The spelling of 1642421452401 in words is "one trillion, six hundred forty-two billion, four hundred twenty-one million, four hundred fifty-two thousand, four hundred one".