142421556305643 has 16 divisors (see below), whose sum is σ = 191521426317312. Its totient is φ = 94137864876000.

The previous prime is 142421556305603. The next prime is 142421556305663. The reversal of 142421556305643 is 346503655124241.

It is not a de Polignac number, because 142421556305643 - 2⁹ = 142421556305131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142421556305603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396023403 + ... + 396382868.

It is an arithmetic number, because the mean of its divisors is an integer number (11970089144832).

Almost surely, 2^{142421556305643} is an apocalyptic number.

142421556305643 is a deficient number, since it is larger than the sum of its proper divisors (49099870011669).

142421556305643 is a wasteful number, since it uses less digits than its factorization.

142421556305643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792406786.

The product of its (nonzero) digits is 10368000, while the sum is 51.

The spelling of 142421556305643 in words is "one hundred forty-two trillion, four hundred twenty-one billion, five hundred fifty-six million, three hundred five thousand, six hundred forty-three".