109778785504 has 24 divisors (see below), whose sum is σ = 227502089640. Its totient is φ = 52000477056.

The previous prime is 109778785463. The next prime is 109778785507. The reversal of 109778785504 is 405587877901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109778785507) 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, 90277999 + ... + 90279214.

It is an arithmetic number, because the mean of its divisors is an integer number (9479253735).

Almost surely, 2^109778785504 is an apocalyptic number.

It is an amenable number.

109778785504 is an abundant number, since it is smaller than the sum of its proper divisors (117723304136).

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

109778785504 is a wasteful number, since it uses less digits than its factorization.

109778785504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180557242 (or 180557234 counting only the distinct ones).

The product of its (nonzero) digits is 19756800, while the sum is 61.

The spelling of 109778785504 in words is "one hundred nine billion, seven hundred seventy-eight million, seven hundred eighty-five thousand, five hundred four".