2078451608063 has 4 divisors (see below), whose sum is σ = 2113679601480. Its totient is φ = 2043223614648.

The previous prime is 2078451608059. The next prime is 2078451608071. The reversal of 2078451608063 is 3608061548702.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2078451608063 - 2² = 2078451608059 is a prime.

It is a super-2 number, since 2×2078451608063² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2078451808063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17613996620 + ... + 17613996737.

It is an arithmetic number, because the mean of its divisors is an integer number (528419900370).

Almost surely, 2^{2078451608063} is an apocalyptic number.

2078451608063 is a deficient number, since it is larger than the sum of its proper divisors (35227993417).

2078451608063 is an equidigital number, since it uses as much as digits as its factorization.

2078451608063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35227993416.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 2078451608063 in words is "two trillion, seventy-eight billion, four hundred fifty-one million, six hundred eight thousand, sixty-three".