306212432563640 has 32 divisors (see below), whose sum is σ = 689417653034880. Its totient is φ = 122406807733632.

The previous prime is 306212432563613. The next prime is 306212432563651. The reversal of 306212432563640 is 46365234212603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2442601907 + ... + 2442727266.

It is an arithmetic number, because the mean of its divisors is an integer number (21544301657340).

Almost surely, 2^{306212432563640} is an apocalyptic number.

It is an amenable number.

306212432563640 is an abundant number, since it is smaller than the sum of its proper divisors (383205220471240).

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

306212432563640 is a wasteful number, since it uses less digits than its factorization.

306212432563640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4885330751 (or 4885330747 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 47.

The spelling of 306212432563640 in words is "three hundred six trillion, two hundred twelve billion, four hundred thirty-two million, five hundred sixty-three thousand, six hundred forty".