77220801226 has 16 divisors (see below), whose sum is σ = 116669662848. Its totient is φ = 38331921600.

The previous prime is 77220801223. The next prime is 77220801247. The reversal of 77220801226 is 62210802277.

It is not an unprimeable number, because it can be changed into a prime (77220801223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98335 + ... + 405106.

It is an arithmetic number, because the mean of its divisors is an integer number (7291853928).

Almost surely, 2^77220801226 is an apocalyptic number.

77220801226 is a deficient number, since it is larger than the sum of its proper divisors (39448861622).

77220801226 is a wasteful number, since it uses less digits than its factorization.

77220801226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503997.

The product of its (nonzero) digits is 37632, while the sum is 37.

The spelling of 77220801226 in words is "seventy-seven billion, two hundred twenty million, eight hundred one thousand, two hundred twenty-six".