78960437873 has 2 divisors, whose sum is σ = 78960437874. Its totient is φ = 78960437872.

The previous prime is 78960437821. The next prime is 78960437917. The reversal of 78960437873 is 37873406987.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45859365904 + 33101071969 = 214148^2 + 181937^2 .

It is a cyclic number.

It is not a de Polignac number, because 78960437873 - 2¹⁴ = 78960421489 is a prime.

It is not a weakly prime, because it can be changed into another prime (78960437273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39480218936 + 39480218937.

It is an arithmetic number, because the mean of its divisors is an integer number (39480218937).

Almost surely, 2^78960437873 is an apocalyptic number.

It is an amenable number.

78960437873 is a deficient number, since it is larger than the sum of its proper divisors (1).

78960437873 is an equidigital number, since it uses as much as digits as its factorization.

78960437873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42674688, while the sum is 62.

The spelling of 78960437873 in words is "seventy-eight billion, nine hundred sixty million, four hundred thirty-seven thousand, eight hundred seventy-three".