1049785667442 has 80 divisors (see below), whose sum is σ = 2381687431200. Its totient is φ = 345566295360.

The previous prime is 1049785667429. The next prime is 1049785667471. The reversal of 1049785667442 is 2447665879401.

1049785667442 is a `hidden beast` number, since 1 + 0 + 497 + 85 + 6 + 67 + 4 + 4 + 2 = 666.

1049785667442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1049785667442² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1049785667442.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11648109 + ... + 11737887.

It is an arithmetic number, because the mean of its divisors is an integer number (29771092890).

Almost surely, 2^{1049785667442} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1049785667442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1190843715600).

1049785667442 is an abundant number, since it is smaller than the sum of its proper divisors (1331901763758).

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

1049785667442 is an equidigital number, since it uses as much as digits as its factorization.

1049785667442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90693 (or 90684 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 63.

The spelling of 1049785667442 in words is "one trillion, forty-nine billion, seven hundred eighty-five million, six hundred sixty-seven thousand, four hundred forty-two".