78467214481 has 2 divisors, whose sum is σ = 78467214482. Its totient is φ = 78467214480.

The previous prime is 78467214311. The next prime is 78467214559. The reversal of 78467214481 is 18441276487.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78467214400 + 81 = 280120^2 + 9^2 .

It is a cyclic number.

It is not a de Polignac number, because 78467214481 - 2⁹ = 78467213969 is a prime.

It is a super-2 number, since 2×78467214481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78467214181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39233607240 + 39233607241.

It is an arithmetic number, because the mean of its divisors is an integer number (39233607241).

Almost surely, 2^78467214481 is an apocalyptic number.

It is an amenable number.

78467214481 is a deficient number, since it is larger than the sum of its proper divisors (1).

78467214481 is an equidigital number, since it uses as much as digits as its factorization.

78467214481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2408448, while the sum is 52.

It can be divided in two parts, 784672144 and 81, that multiplied together give a square (63558443664 = 252108²).

The spelling of 78467214481 in words is "seventy-eight billion, four hundred sixty-seven million, two hundred fourteen thousand, four hundred eighty-one".