1681246304430 has 192 divisors, whose sum is σ = 5343101480448. Its totient is φ = 334160682240.

The previous prime is 1681246304417. The next prime is 1681246304431. The reversal of 1681246304430 is 344036421861.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1681246304431) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1888377 + ... + 2632196.

It is an arithmetic number, because the mean of its divisors is an integer number (27828653544).

Almost surely, 2^{1681246304430} is an apocalyptic number.

1681246304430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1681246304430 is an abundant number, since it is smaller than the sum of its proper divisors (3661855176018).

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

1681246304430 is a wasteful number, since it uses less digits than its factorization.

1681246304430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4520631 (or 4520624 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 1681246304430 in words is "one trillion, six hundred eighty-one billion, two hundred forty-six million, three hundred four thousand, four hundred thirty".