67010824981 has 2 divisors, whose sum is σ = 67010824982. Its totient is φ = 67010824980.

The previous prime is 67010824943. The next prime is 67010825033. The reversal of 67010824981 is 18942801076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66923103025 + 87721956 = 258695^2 + 9366^2 .

It is a cyclic number.

It is not a de Polignac number, because 67010824981 - 2¹⁷ = 67010693909 is a prime.

It is a super-4 number, since 4×67010824981⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67010824901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33505412490 + 33505412491.

It is an arithmetic number, because the mean of its divisors is an integer number (33505412491).

Almost surely, 2^67010824981 is an apocalyptic number.

It is an amenable number.

67010824981 is a deficient number, since it is larger than the sum of its proper divisors (1).

67010824981 is an equidigital number, since it uses as much as digits as its factorization.

67010824981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 67010824981 in words is "sixty-seven billion, ten million, eight hundred twenty-four thousand, nine hundred eighty-one".