1002145252044 has 24 divisors (see below), whose sum is σ = 2401537271728. Its totient is φ = 325020081600.

The previous prime is 1002145251997. The next prime is 1002145252049. The reversal of 1002145252044 is 4402525412001.

It is not an unprimeable number, because it can be changed into a prime (1002145252049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1128541507 + ... + 1128542394.

Almost surely, 2^{1002145252044} is an apocalyptic number.

It is an amenable number.

1002145252044 is an abundant number, since it is smaller than the sum of its proper divisors (1399392019684).

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

1002145252044 is a wasteful number, since it uses less digits than its factorization.

1002145252044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257083945 (or 2257083943 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The spelling of 1002145252044 in words is "one trillion, two billion, one hundred forty-five million, two hundred fifty-two thousand, forty-four".