78701494843 has 2 divisors, whose sum is σ = 78701494844. Its totient is φ = 78701494842.

The previous prime is 78701494811. The next prime is 78701494847. The reversal of 78701494843 is 34849410787.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78701494843 - 2⁵ = 78701494811 is a prime.

It is not a weakly prime, because it can be changed into another prime (78701494847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39350747421 + 39350747422.

It is an arithmetic number, because the mean of its divisors is an integer number (39350747422).

Almost surely, 2^78701494843 is an apocalyptic number.

78701494843 is a deficient number, since it is larger than the sum of its proper divisors (1).

78701494843 is an equidigital number, since it uses as much as digits as its factorization.

78701494843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 78701494843 in words is "seventy-eight billion, seven hundred one million, four hundred ninety-four thousand, eight hundred forty-three".