1963519942 has 4 divisors (see below), whose sum is σ = 2945279916. Its totient is φ = 981759970.

The previous prime is 1963519933. The next prime is 1963519951. The reversal of 1963519942 is 2499153691.

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

It is an interprime number because it is at equal distance from previous prime (1963519933) and next prime (1963519951).

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, 490879984 + ... + 490879987.

It is an arithmetic number, because the mean of its divisors is an integer number (736319979).

Almost surely, 2^1963519942 is an apocalyptic number.

1963519942 is a deficient number, since it is larger than the sum of its proper divisors (981759974).

1963519942 is an equidigital number, since it uses as much as digits as its factorization.

1963519942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981759973.

The product of its digits is 524880, while the sum is 49.

The square root of 1963519942 is about 44311.6231027481. The cubic root of 1963519942 is about 1252.2136650621.

The spelling of 1963519942 in words is "one billion, nine hundred sixty-three million, five hundred nineteen thousand, nine hundred forty-two".