78626194081 has 8 divisors (see below), whose sum is σ = 78780850560. Its totient is φ = 78471587088.

The previous prime is 78626194067. The next prime is 78626194121. The reversal of 78626194081 is 18049162687.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78626194081 - 2¹¹ = 78626192033 is a prime.

It is a super-2 number, since 2×78626194081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78626194481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5473150 + ... + 5487496.

It is an arithmetic number, because the mean of its divisors is an integer number (9847606320).

Almost surely, 2^78626194081 is an apocalyptic number.

It is an amenable number.

78626194081 is a deficient number, since it is larger than the sum of its proper divisors (154656479).

78626194081 is a wasteful number, since it uses less digits than its factorization.

78626194081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24743.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 78626194081 in words is "seventy-eight billion, six hundred twenty-six million, one hundred ninety-four thousand, eighty-one".