1642338392506 has 8 divisors (see below), whose sum is σ = 2815437244320. Its totient is φ = 703859311068.

The previous prime is 1642338392501. The next prime is 1642338392533. The reversal of 1642338392506 is 6052938332461.

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

It is not an unprimeable number, because it can be changed into a prime (1642338392501) 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, 58654942576 + ... + 58654942603.

It is an arithmetic number, because the mean of its divisors is an integer number (351929655540).

Almost surely, 2^{1642338392506} is an apocalyptic number.

1642338392506 is a deficient number, since it is larger than the sum of its proper divisors (1173098851814).

1642338392506 is a wasteful number, since it uses less digits than its factorization.

1642338392506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117309885188.

The product of its (nonzero) digits is 5598720, while the sum is 52.

The spelling of 1642338392506 in words is "one trillion, six hundred forty-two billion, three hundred thirty-eight million, three hundred ninety-two thousand, five hundred six".