8077091644 has 6 divisors (see below), whose sum is σ = 14134910384. Its totient is φ = 4038545820.

The previous prime is 8077091609. The next prime is 8077091699. The reversal of 8077091644 is 4461907708.

It is a junction number, because it is equal to n+sod(n) for n = 8077091594 and 8077091603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009636452 + ... + 1009636459.

Almost surely, 2^8077091644 is an apocalyptic number.

It is an amenable number.

8077091644 is a deficient number, since it is larger than the sum of its proper divisors (6057818740).

8077091644 is a wasteful number, since it uses less digits than its factorization.

8077091644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019272915 (or 2019272913 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 8077091644 is about 89872.6412430390. The cubic root of 8077091644 is about 2006.4037775989.

The spelling of 8077091644 in words is "eight billion, seventy-seven million, ninety-one thousand, six hundred forty-four".