1642642062406 has 8 divisors (see below), whose sum is σ = 2543445774144. Its totient is φ = 794826804360.

The previous prime is 1642642062401. The next prime is 1642642062613. The reversal of 1642642062406 is 6042602462461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642642062401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13247113345 + ... + 13247113468.

It is an arithmetic number, because the mean of its divisors is an integer number (317930721768).

Almost surely, 2^{1642642062406} is an apocalyptic number.

1642642062406 is a deficient number, since it is larger than the sum of its proper divisors (900803711738).

1642642062406 is a wasteful number, since it uses less digits than its factorization.

1642642062406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26494226846.

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 1642642062406 in words is "one trillion, six hundred forty-two billion, six hundred forty-two million, sixty-two thousand, four hundred six".