2078451608071 has 2 divisors, whose sum is σ = 2078451608072. Its totient is φ = 2078451608070.

The previous prime is 2078451608059. The next prime is 2078451608099. The reversal of 2078451608071 is 1708061548702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2078451608071 - 2⁵ = 2078451608039 is a prime.

It is a super-2 number, since 2×2078451608071² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2078451608021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1039225804035 + 1039225804036.

It is an arithmetic number, because the mean of its divisors is an integer number (1039225804036).

Almost surely, 2^{2078451608071} is an apocalyptic number.

2078451608071 is a deficient number, since it is larger than the sum of its proper divisors (1).

2078451608071 is an equidigital number, since it uses as much as digits as its factorization.

2078451608071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 752640, while the sum is 49.

The spelling of 2078451608071 in words is "two trillion, seventy-eight billion, four hundred fifty-one million, six hundred eight thousand, seventy-one".