1968503942 has 4 divisors (see below), whose sum is σ = 2952755916. Its totient is φ = 984251970.

The previous prime is 1968503939. The next prime is 1968503989. The reversal of 1968503942 is 2493058691.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492125984 + ... + 492125987.

It is an arithmetic number, because the mean of its divisors is an integer number (738188979).

Almost surely, 2^1968503942 is an apocalyptic number.

1968503942 is a deficient number, since it is larger than the sum of its proper divisors (984251974).

1968503942 is an equidigital number, since it uses as much as digits as its factorization.

1968503942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984251973.

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 1968503942 is about 44367.8255270641. The cubic root of 1968503942 is about 1253.2722672985.

The spelling of 1968503942 in words is "one billion, nine hundred sixty-eight million, five hundred three thousand, nine hundred forty-two".