630242665020402 has 96 divisors (see below), whose sum is σ = 1482518338519680. Its totient is φ = 178077825192960.

The previous prime is 630242665020391. The next prime is 630242665020407. The reversal of 630242665020402 is 204020566242036.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (630242665020407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29237752 + ... + 45992732.

It is an arithmetic number, because the mean of its divisors is an integer number (15442899359580).

Almost surely, 2^{630242665020402} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630242665020402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (741259169259840).

630242665020402 is an abundant number, since it is smaller than the sum of its proper divisors (852275673499278).

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

630242665020402 is a wasteful number, since it uses less digits than its factorization.

630242665020402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16756416 (or 16756409 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 630242665020402 in words is "six hundred thirty trillion, two hundred forty-two billion, six hundred sixty-five million, twenty thousand, four hundred two".