245321045251512 has 32 divisors (see below), whose sum is σ = 621065937350400. Its totient is φ = 80738571854304.

The previous prime is 245321045251511. The next prime is 245321045251603. The reversal of 245321045251512 is 215152540123542.

It is a super-2 number, since 2×245321045251512² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245321045251511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64694366578 + ... + 64694370369.

It is an arithmetic number, because the mean of its divisors is an integer number (19408310542200).

Almost surely, 2^{245321045251512} is an apocalyptic number.

It is an amenable number.

245321045251512 is an abundant number, since it is smaller than the sum of its proper divisors (375744892098888).

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

245321045251512 is a wasteful number, since it uses less digits than its factorization.

245321045251512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129388737035 (or 129388737031 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 42.

The spelling of 245321045251512 in words is "two hundred forty-five trillion, three hundred twenty-one billion, forty-five million, two hundred fifty-one thousand, five hundred twelve".