78070967851 has 2 divisors, whose sum is σ = 78070967852. Its totient is φ = 78070967850.

The previous prime is 78070967797. The next prime is 78070967879. The reversal of 78070967851 is 15876907087.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78070967851 - 2³⁵ = 43711229483 is a prime.

It is not a weakly prime, because it can be changed into another prime (78070967651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39035483925 + 39035483926.

It is an arithmetic number, because the mean of its divisors is an integer number (39035483926).

Almost surely, 2^78070967851 is an apocalyptic number.

78070967851 is a deficient number, since it is larger than the sum of its proper divisors (1).

78070967851 is an equidigital number, since it uses as much as digits as its factorization.

78070967851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5927040, while the sum is 58.

The spelling of 78070967851 in words is "seventy-eight billion, seventy million, nine hundred sixty-seven thousand, eight hundred fifty-one".