1042346058781 has 4 divisors (see below), whose sum is σ = 1042502550364. Its totient is φ = 1042189567200.

The previous prime is 1042346058749. The next prime is 1042346058823. The reversal of 1042346058781 is 1878506432401.

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 606295822500 + 436050236281 = 778650^2 + 660341^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042346058781 - 2⁵ = 1042346058749 is a prime.

It is a super-2 number, since 2×1042346058781² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042346058881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78235800 + ... + 78249121.

It is an arithmetic number, because the mean of its divisors is an integer number (260625637591).

Almost surely, 2^{1042346058781} is an apocalyptic number.

It is an amenable number.

1042346058781 is a deficient number, since it is larger than the sum of its proper divisors (156491583).

1042346058781 is an equidigital number, since it uses as much as digits as its factorization.

1042346058781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156491582.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 1042346058781 in words is "one trillion, forty-two billion, three hundred forty-six million, fifty-eight thousand, seven hundred eighty-one".