3878171623063 has 4 divisors (see below), whose sum is σ = 3878379464008. Its totient is φ = 3877963782120.

The previous prime is 3878171623033. The next prime is 3878171623093. The reversal of 3878171623063 is 3603261718783.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (3878171623033) and next prime (3878171623093).

It is a cyclic number.

It is not a de Polignac number, because 3878171623063 - 2³⁷ = 3740732669591 is a prime.

It is a super-2 number, since 2×3878171623063² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3878171622995 and 3878171623013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3878171623033) 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, 103892481 + ... + 103929802.

It is an arithmetic number, because the mean of its divisors is an integer number (969594866002).

Almost surely, 2^{3878171623063} is an apocalyptic number.

3878171623063 is a deficient number, since it is larger than the sum of its proper divisors (207840945).

3878171623063 is a wasteful number, since it uses less digits than its factorization.

3878171623063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207840944.

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 3878171623063 in words is "three trillion, eight hundred seventy-eight billion, one hundred seventy-one million, six hundred twenty-three thousand, sixty-three".