321434615642 has 16 divisors (see below), whose sum is σ = 551038635072. Its totient is φ = 137755726080.

The previous prime is 321434615629. The next prime is 321434615651. The reversal of 321434615642 is 246516434123.

It is a self number, because there is not a number n which added to its sum of digits gives 321434615642.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1307642 + ... + 1533882.

It is an arithmetic number, because the mean of its divisors is an integer number (34439914692).

Almost surely, 2^321434615642 is an apocalyptic number.

321434615642 is a deficient number, since it is larger than the sum of its proper divisors (229604019430).

321434615642 is a wasteful number, since it uses less digits than its factorization.

321434615642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327733.

The product of its digits is 414720, while the sum is 41.

The spelling of 321434615642 in words is "three hundred twenty-one billion, four hundred thirty-four million, six hundred fifteen thousand, six hundred forty-two".