7771040043444 has 36 divisors (see below), whose sum is σ = 19644021030816. Its totient is φ = 2590273006608.

The previous prime is 7771040043409. The next prime is 7771040043461. The reversal of 7771040043444 is 4443400401777.

7771040043444 is a `hidden beast` number, since 7 + 77 + 104 + 0 + 0 + 434 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×7771040043444² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7771040043444.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1779024 + ... + 4325159.

It is an arithmetic number, because the mean of its divisors is an integer number (545667250856).

Almost surely, 2^{7771040043444} is an apocalyptic number.

It is an amenable number.

7771040043444 is an abundant number, since it is smaller than the sum of its proper divisors (11872980987372).

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

7771040043444 is a wasteful number, since it uses less digits than its factorization.

7771040043444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6139556 (or 6139551 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 45.

The spelling of 7771040043444 in words is "seven trillion, seven hundred seventy-one billion, forty million, forty-three thousand, four hundred forty-four".