77779225926 has 12 divisors (see below), whose sum is σ = 168521656212. Its totient is φ = 25926408636.

The previous prime is 77779225921. The next prime is 77779225933. The reversal of 77779225926 is 62952297777.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77779225921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2160534036 + ... + 2160534071.

It is an arithmetic number, because the mean of its divisors is an integer number (14043471351).

Almost surely, 2^77779225926 is an apocalyptic number.

77779225926 is an abundant number, since it is smaller than the sum of its proper divisors (90742430286).

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

77779225926 is a wasteful number, since it uses less digits than its factorization.

77779225926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4321068115 (or 4321068112 counting only the distinct ones).

The product of its digits is 46675440, while the sum is 63.

The spelling of 77779225926 in words is "seventy-seven billion, seven hundred seventy-nine million, two hundred twenty-five thousand, nine hundred twenty-six".