1771730441242 has 4 divisors (see below), whose sum is σ = 2657595661866. Its totient is φ = 885865220620.

The previous prime is 1771730441207. The next prime is 1771730441281. The reversal of 1771730441242 is 2421440371771.

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

It can be written as a sum of positive squares in only one way, i.e., 1555355685321 + 216374755921 = 1247139^2 + 465161^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 442932610309 + ... + 442932610312.

Almost surely, 2^{1771730441242} is an apocalyptic number.

1771730441242 is a deficient number, since it is larger than the sum of its proper divisors (885865220624).

1771730441242 is an equidigital number, since it uses as much as digits as its factorization.

1771730441242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885865220623.

The product of its (nonzero) digits is 263424, while the sum is 43.

The spelling of 1771730441242 in words is "one trillion, seven hundred seventy-one billion, seven hundred thirty million, four hundred forty-one thousand, two hundred forty-two".