1305630621425 has 24 divisors (see below), whose sum is σ = 1746706703616. Its totient is φ = 962395237440.

The previous prime is 1305630621409. The next prime is 1305630621461. The reversal of 1305630621425 is 5241260365031.

It is not a de Polignac number, because 1305630621425 - 2⁴ = 1305630621409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3494369 + ... + 3849918.

It is an arithmetic number, because the mean of its divisors is an integer number (72779445984).

Almost surely, 2^{1305630621425} is an apocalyptic number.

It is an amenable number.

1305630621425 is a deficient number, since it is larger than the sum of its proper divisors (441076082191).

1305630621425 is a wasteful number, since it uses less digits than its factorization.

1305630621425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7344857 (or 7344852 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 1305630621425 its reverse (5241260365031), we get a palindrome (6546890986456).

The spelling of 1305630621425 in words is "one trillion, three hundred five billion, six hundred thirty million, six hundred twenty-one thousand, four hundred twenty-five".