1042765844420 has 96 divisors (see below), whose sum is σ = 2261883120000. Its totient is φ = 403510947840.

The previous prime is 1042765844413. The next prime is 1042765844459. The reversal of 1042765844420 is 244485672401.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 195016187 + ... + 195021533.

It is an arithmetic number, because the mean of its divisors is an integer number (23561282500).

Almost surely, 2^{1042765844420} is an apocalyptic number.

1042765844420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1042765844420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1130941560000).

1042765844420 is an abundant number, since it is smaller than the sum of its proper divisors (1219117275580).

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

1042765844420 is a wasteful number, since it uses less digits than its factorization.

1042765844420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6853 (or 6851 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 47.

The spelling of 1042765844420 in words is "one trillion, forty-two billion, seven hundred sixty-five million, eight hundred forty-four thousand, four hundred twenty".