77220606503904 has 48 divisors (see below), whose sum is σ = 202704624754128. Its totient is φ = 25740134525952.

The previous prime is 77220606503867. The next prime is 77220606503959. The reversal of 77220606503904 is 40930560602277.

77220606503904 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46974714 + ... + 48590790.

It is an arithmetic number, because the mean of its divisors is an integer number (4223013015711).

Almost surely, 2^{77220606503904} is an apocalyptic number.

It is an amenable number.

77220606503904 is an abundant number, since it is smaller than the sum of its proper divisors (125484018250224).

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

77220606503904 is a wasteful number, since it uses less digits than its factorization.

77220606503904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113827 (or 2113819 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 51.

The spelling of 77220606503904 in words is "seventy-seven trillion, two hundred twenty billion, six hundred six million, five hundred three thousand, nine hundred four".