771040071044 has 12 divisors (see below), whose sum is σ = 1349331691344. Its totient is φ = 385516730664.

The previous prime is 771040071023. The next prime is 771040071077. The reversal of 771040071044 is 440170040177.

It is a super-3 number, since 3×771040071044³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 771040070995 and 771040071013.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257834 + ... + 1268289.

It is an arithmetic number, because the mean of its divisors is an integer number (112444307612).

Almost surely, 2^771040071044 is an apocalyptic number.

It is an amenable number.

771040071044 is a deficient number, since it is larger than the sum of its proper divisors (578291620300).

771040071044 is a wasteful number, since it uses less digits than its factorization.

771040071044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652434 (or 1652432 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 35.

The spelling of 771040071044 in words is "seven hundred seventy-one billion, forty million, seventy-one thousand, forty-four".