77801101444 has 24 divisors (see below), whose sum is σ = 150318893088. Its totient is φ = 34938061440.

The previous prime is 77801101349. The next prime is 77801101493. The reversal of 77801101444 is 44410110877.

It is a super-2 number, since 2×77801101444² (a number of 23 digits) contains 22 as substring.

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, 10648197 + ... + 10655500.

It is an arithmetic number, because the mean of its divisors is an integer number (6263287212).

Almost surely, 2^77801101444 is an apocalyptic number.

It is an amenable number.

77801101444 is a deficient number, since it is larger than the sum of its proper divisors (72517791644).

77801101444 is a wasteful number, since it uses less digits than its factorization.

77801101444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21303795 (or 21303793 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 37.

The spelling of 77801101444 in words is "seventy-seven billion, eight hundred one million, one hundred one thousand, four hundred forty-four".