202920743642 has 32 divisors (see below), whose sum is σ = 310769049600. Its totient is φ = 99345465648.

The previous prime is 202920743611. The next prime is 202920743699. The reversal of 202920743642 is 246347029202.

It is a self number, because there is not a number n which added to its sum of digits gives 202920743642.

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, 38819033 + ... + 38824259.

It is an arithmetic number, because the mean of its divisors is an integer number (9711532800).

Almost surely, 2^202920743642 is an apocalyptic number.

202920743642 is a deficient number, since it is larger than the sum of its proper divisors (107848305958).

202920743642 is a wasteful number, since it uses less digits than its factorization.

202920743642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6530.

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 202920743642 in words is "two hundred two billion, nine hundred twenty million, seven hundred forty-three thousand, six hundred forty-two".