77349630181 has 8 divisors (see below), whose sum is σ = 78877281600. Its totient is φ = 75834151680.

The previous prime is 77349630167. The next prime is 77349630209. The reversal of 77349630181 is 18103694377.

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 77349630181 - 2⁷ = 77349630053 is a prime.

It is a super-2 number, since 2×77349630181² (a number of 23 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 (77349630151) 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, 3030396 + ... + 3055813.

It is an arithmetic number, because the mean of its divisors is an integer number (9859660200).

Almost surely, 2^77349630181 is an apocalyptic number.

77349630181 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

77349630181 is a deficient number, since it is larger than the sum of its proper divisors (1527651419).

77349630181 is a wasteful number, since it uses less digits than its factorization.

77349630181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6086459.

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 77349630181 in words is "seventy-seven billion, three hundred forty-nine million, six hundred thirty thousand, one hundred eighty-one".