1942752530881 has 4 divisors (see below), whose sum is σ = 1945492662100. Its totient is φ = 1940012399664.

The previous prime is 1942752530783. The next prime is 1942752530903. The reversal of 1942752530881 is 1880352572491.

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

It can be written as a sum of positive squares in 2 ways, for example, as 496707800625 + 1446044730256 = 704775^2 + 1202516^2 .

It is a cyclic number.

It is not a de Polignac number, because 1942752530881 - 2³⁷ = 1805313577409 is a prime.

It is a super-2 number, since 2×1942752530881² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1942752590881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1370064546 + ... + 1370065963.

It is an arithmetic number, because the mean of its divisors is an integer number (486373165525).

Almost surely, 2^{1942752530881} is an apocalyptic number.

It is an amenable number.

1942752530881 is a deficient number, since it is larger than the sum of its proper divisors (2740131219).

1942752530881 is an equidigital number, since it uses as much as digits as its factorization.

1942752530881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740131218.

The product of its (nonzero) digits is 4838400, while the sum is 55.

The spelling of 1942752530881 in words is "one trillion, nine hundred forty-two billion, seven hundred fifty-two million, five hundred thirty thousand, eight hundred eighty-one".