1223953532642 has 32 divisors (see below), whose sum is σ = 1947176599680. Its totient is φ = 575015811840.

The previous prime is 1223953532569. The next prime is 1223953532663. The reversal of 1223953532642 is 2462353593221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58325792 + ... + 58346772.

It is an arithmetic number, because the mean of its divisors is an integer number (60849268740).

Almost surely, 2^{1223953532642} is an apocalyptic number.

1223953532642 is a deficient number, since it is larger than the sum of its proper divisors (723223067038).

1223953532642 is a wasteful number, since it uses less digits than its factorization.

1223953532642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23786.

The product of its digits is 2332800, while the sum is 47.

The spelling of 1223953532642 in words is "one trillion, two hundred twenty-three billion, nine hundred fifty-three million, five hundred thirty-two thousand, six hundred forty-two".