1329694923642 has 64 divisors (see below), whose sum is σ = 2706590540160. Its totient is φ = 435416131584.

The previous prime is 1329694923629. The next prime is 1329694923647. The reversal of 1329694923642 is 2463294969231.

It is not an unprimeable number, because it can be changed into a prime (1329694923647) 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, 163690993 + ... + 163699115.

It is an arithmetic number, because the mean of its divisors is an integer number (42290477190).

Almost surely, 2^{1329694923642} is an apocalyptic number.

1329694923642 is an abundant number, since it is smaller than the sum of its proper divisors (1376895616518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1329694923642 is a wasteful number, since it uses less digits than its factorization.

1329694923642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9647.

The product of its digits is 30233088, while the sum is 60.

The spelling of 1329694923642 in words is "one trillion, three hundred twenty-nine billion, six hundred ninety-four million, nine hundred twenty-three thousand, six hundred forty-two".