78682494001 has 2 divisors, whose sum is σ = 78682494002. Its totient is φ = 78682494000.

The previous prime is 78682493993. The next prime is 78682494067. The reversal of 78682494001 is 10049428687.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55934615025 + 22747878976 = 236505^2 + 150824^2 .

It is an emirp because it is prime and its reverse (10049428687) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78682494001 - 2³ = 78682493993 is a prime.

It is not a weakly prime, because it can be changed into another prime (78682494071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39341247000 + 39341247001.

It is an arithmetic number, because the mean of its divisors is an integer number (39341247001).

Almost surely, 2^78682494001 is an apocalyptic number.

It is an amenable number.

78682494001 is a deficient number, since it is larger than the sum of its proper divisors (1).

78682494001 is an equidigital number, since it uses as much as digits as its factorization.

78682494001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 78682494001 in words is "seventy-eight billion, six hundred eighty-two million, four hundred ninety-four thousand, one".