1972455339342 has 32 divisors (see below), whose sum is σ = 4051707116544. Its totient is φ = 639687261600.

The previous prime is 1972455339299. The next prime is 1972455339359. The reversal of 1972455339342 is 2439335542791.

It is a happy number.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5232667 + ... + 5596937.

It is an arithmetic number, because the mean of its divisors is an integer number (126615847392).

Almost surely, 2^{1972455339342} is an apocalyptic number.

1972455339342 is an abundant number, since it is smaller than the sum of its proper divisors (2079251777202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1972455339342 is a wasteful number, since it uses less digits than its factorization.

1972455339342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388704.

The product of its digits is 24494400, while the sum is 57.

The spelling of 1972455339342 in words is "one trillion, nine hundred seventy-two billion, four hundred fifty-five million, three hundred thirty-nine thousand, three hundred forty-two".