1002245673408 has 112 divisors (see below), whose sum is σ = 3037351507200. Its totient is φ = 285717970944.

The previous prime is 1002245673379. The next prime is 1002245673409. The reversal of 1002245673408 is 8043765422001.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1002245673408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002245673409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226966 + ... + 1433877.

Almost surely, 2^{1002245673408} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002245673408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1518675753600).

1002245673408 is an abundant number, since it is smaller than the sum of its proper divisors (2035105833792).

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

1002245673408 is a wasteful number, since it uses less digits than its factorization.

1002245673408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661314 (or 1661304 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 1002245673408 in words is "one trillion, two billion, two hundred forty-five million, six hundred seventy-three thousand, four hundred eight".