78108180622 has 4 divisors (see below), whose sum is σ = 117162270936. Its totient is φ = 39054090310.

The previous prime is 78108180593. The next prime is 78108180713. The reversal of 78108180622 is 22608180187.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22608180187 = 9907 ⋅2282041.

It is a super-2 number, since 2×78108180622² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19527045154 + ... + 19527045157.

It is an arithmetic number, because the mean of its divisors is an integer number (29290567734).

Almost surely, 2^78108180622 is an apocalyptic number.

78108180622 is a deficient number, since it is larger than the sum of its proper divisors (39054090314).

78108180622 is a wasteful number, since it uses less digits than its factorization.

78108180622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39054090313.

The product of its (nonzero) digits is 86016, while the sum is 43.

The spelling of 78108180622 in words is "seventy-eight billion, one hundred eight million, one hundred eighty thousand, six hundred twenty-two".