678103710071 has 4 divisors (see below), whose sum is σ = 678130128312. Its totient is φ = 678077291832.

The previous prime is 678103710059. The next prime is 678103710077. The reversal of 678103710071 is 170017301876.

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 678103710071 - 2¹⁸ = 678103447927 is a prime.

It is a super-2 number, since 2×678103710071² (a number of 24 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 (678103710077) 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, 13170581 + ... + 13221966.

It is an arithmetic number, because the mean of its divisors is an integer number (169532532078).

Almost surely, 2^678103710071 is an apocalyptic number.

678103710071 is a deficient number, since it is larger than the sum of its proper divisors (26418241).

678103710071 is a wasteful number, since it uses less digits than its factorization.

678103710071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26418240.

The product of its (nonzero) digits is 49392, while the sum is 41.

The spelling of 678103710071 in words is "six hundred seventy-eight billion, one hundred three million, seven hundred ten thousand, seventy-one".