1947232721342 has 4 divisors (see below), whose sum is σ = 2920849082016. Its totient is φ = 973616360670.

The previous prime is 1947232721333. The next prime is 1947232721353. The reversal of 1947232721342 is 2431272327491.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 486808180334 + ... + 486808180337.

It is an arithmetic number, because the mean of its divisors is an integer number (730212270504).

Almost surely, 2^{1947232721342} is an apocalyptic number.

1947232721342 is a deficient number, since it is larger than the sum of its proper divisors (973616360674).

1947232721342 is an equidigital number, since it uses as much as digits as its factorization.

1947232721342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973616360673.

The product of its digits is 1016064, while the sum is 47.

The spelling of 1947232721342 in words is "one trillion, nine hundred forty-seven billion, two hundred thirty-two million, seven hundred twenty-one thousand, three hundred forty-two".