78504131184403 has 2 divisors, whose sum is σ = 78504131184404. Its totient is φ = 78504131184402.

The previous prime is 78504131184397. The next prime is 78504131184419. The reversal of 78504131184403 is 30448113140587.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78504131184403 - 2⁴¹ = 76305107928851 is a prime.

It is a super-2 number, since 2×78504131184403² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78504131184473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39252065592201 + 39252065592202.

It is an arithmetic number, because the mean of its divisors is an integer number (39252065592202).

Almost surely, 2^{78504131184403} is an apocalyptic number.

78504131184403 is a deficient number, since it is larger than the sum of its proper divisors (1).

78504131184403 is an equidigital number, since it uses as much as digits as its factorization.

78504131184403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 78504131184403 in words is "seventy-eight trillion, five hundred four billion, one hundred thirty-one million, one hundred eighty-four thousand, four hundred three".