67900895281 has 2 divisors, whose sum is σ = 67900895282. Its totient is φ = 67900895280.

The previous prime is 67900895269. The next prime is 67900895329. The reversal of 67900895281 is 18259800976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53342059681 + 14558835600 = 230959^2 + 120660^2 .

It is a cyclic number.

It is not a de Polignac number, because 67900895281 - 2¹⁷ = 67900764209 is a prime.

It is a super-2 number, since 2×67900895281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67900895201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33950447640 + 33950447641.

It is an arithmetic number, because the mean of its divisors is an integer number (33950447641).

Almost surely, 2^67900895281 is an apocalyptic number.

It is an amenable number.

67900895281 is a deficient number, since it is larger than the sum of its proper divisors (1).

67900895281 is an equidigital number, since it uses as much as digits as its factorization.

67900895281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 67900895281 in words is "sixty-seven billion, nine hundred million, eight hundred ninety-five thousand, two hundred eighty-one".