78494301503 has 2 divisors, whose sum is σ = 78494301504. Its totient is φ = 78494301502.

The previous prime is 78494301497. The next prime is 78494301511. The reversal of 78494301503 is 30510349487.

It is a weak prime.

It is an emirp because it is prime and its reverse (30510349487) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78494301503 - 2¹⁸ = 78494039359 is a prime.

It is a super-2 number, since 2×78494301503² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78494300503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39247150751 + 39247150752.

It is an arithmetic number, because the mean of its divisors is an integer number (39247150752).

Almost surely, 2^78494301503 is an apocalyptic number.

78494301503 is a deficient number, since it is larger than the sum of its proper divisors (1).

78494301503 is an equidigital number, since it uses as much as digits as its factorization.

78494301503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 78494301503 in words is "seventy-eight billion, four hundred ninety-four million, three hundred one thousand, five hundred three".