77227306458 has 8 divisors (see below), whose sum is σ = 154454612928. Its totient is φ = 25742435484.

The previous prime is 77227306421. The next prime is 77227306459. The reversal of 77227306458 is 85460372277.

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

77227306458 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 77227306458.

It is not an unprimeable number, because it can be changed into a prime (77227306459) 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, 6435608866 + ... + 6435608877.

It is an arithmetic number, because the mean of its divisors is an integer number (19306826616).

Almost surely, 2^77227306458 is an apocalyptic number.

77227306458 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77227306458 is a wasteful number, since it uses less digits than its factorization.

77227306458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12871217748.

The product of its (nonzero) digits is 3951360, while the sum is 51.

The spelling of 77227306458 in words is "seventy-seven billion, two hundred twenty-seven million, three hundred six thousand, four hundred fifty-eight".