68421484025 has 12 divisors (see below), whose sum is σ = 84868351932. Its totient is φ = 54720599040.

The previous prime is 68421483997. The next prime is 68421484073. The reversal of 68421484025 is 52048412486.

It can be written as a sum of positive squares in 6 ways, for example, as 1613709241 + 66807774784 = 40171^2 + 258472^2 .

It is not a de Polignac number, because 68421484025 - 2¹⁴ = 68421467641 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330224 + ... + 495873.

It is an arithmetic number, because the mean of its divisors is an integer number (7072362661).

Almost surely, 2^68421484025 is an apocalyptic number.

It is an amenable number.

68421484025 is a deficient number, since it is larger than the sum of its proper divisors (16446867907).

68421484025 is a wasteful number, since it uses less digits than its factorization.

68421484025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829420 (or 829415 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 44.

The spelling of 68421484025 in words is "sixty-eight billion, four hundred twenty-one million, four hundred eighty-four thousand, twenty-five".