512421391320450 has 48 divisors (see below), whose sum is σ = 1277389532673696. Its totient is φ = 135937695513600.

The previous prime is 512421391320407. The next prime is 512421391320523. The reversal of 512421391320450 is 54023193124215.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8850081436 + ... + 8850139335.

It is an arithmetic number, because the mean of its divisors is an integer number (26612281930702).

Almost surely, 2^{512421391320450} is an apocalyptic number.

512421391320450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

512421391320450 is an abundant number, since it is smaller than the sum of its proper divisors (764968141353246).

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

512421391320450 is a wasteful number, since it uses less digits than its factorization.

512421391320450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17700220979 (or 17700220974 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 512421391320450 in words is "five hundred twelve trillion, four hundred twenty-one billion, three hundred ninety-one million, three hundred twenty thousand, four hundred fifty".