67970452720831 has 2 divisors, whose sum is σ = 67970452720832. Its totient is φ = 67970452720830.

The previous prime is 67970452720813. The next prime is 67970452720879. The reversal of 67970452720831 is 13802725407976.

Together with previous prime (67970452720813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67970452720831 - 2¹⁵ = 67970452688063 is a prime.

It is a super-2 number, since 2×67970452720831² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67970452720831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67970452726831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33985226360415 + 33985226360416.

It is an arithmetic number, because the mean of its divisors is an integer number (33985226360416).

It is a 1-persistent number, because it is pandigital, but 2⋅67970452720831 = 135940905441662 is not.

Almost surely, 2^{67970452720831} is an apocalyptic number.

67970452720831 is a deficient number, since it is larger than the sum of its proper divisors (1).

67970452720831 is an equidigital number, since it uses as much as digits as its factorization.

67970452720831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35562240, while the sum is 61.

The spelling of 67970452720831 in words is "sixty-seven trillion, nine hundred seventy billion, four hundred fifty-two million, seven hundred twenty thousand, eight hundred thirty-one".