78263714364163 has 4 divisors (see below), whose sum is σ = 78270629963920. Its totient is φ = 78256798764408.

The previous prime is 78263714364137. The next prime is 78263714364221. The reversal of 78263714364163 is 36146341736287.

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 78263714364163 - 2⁹ = 78263714363651 is a prime.

It is a super-2 number, since 2×78263714364163² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78263714344163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3457782903 + ... + 3457805536.

It is an arithmetic number, because the mean of its divisors is an integer number (19567657490980).

Almost surely, 2^{78263714364163} is an apocalyptic number.

78263714364163 is a deficient number, since it is larger than the sum of its proper divisors (6915599757).

78263714364163 is a wasteful number, since it uses less digits than its factorization.

78263714364163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6915599756.

The product of its digits is 73156608, while the sum is 61.

The spelling of 78263714364163 in words is "seventy-eight trillion, two hundred sixty-three billion, seven hundred fourteen million, three hundred sixty-four thousand, one hundred sixty-three".