8077200720 has 80 divisors (see below), whose sum is σ = 26128006272. Its totient is φ = 2060270080.

The previous prime is 8077200709. The next prime is 8077200739. The reversal of 8077200720 is 270027708.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 726111 + ... + 737150.

Almost surely, 2^8077200720 is an apocalyptic number.

8077200720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8077200720 is an abundant number, since it is smaller than the sum of its proper divisors (18050805552).

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

8077200720 is a wasteful number, since it uses less digits than its factorization.

8077200720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463300 (or 1463294 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 33.

The square root of 8077200720 is about 89873.2480775008. The cubic root of 8077200720 is about 2006.4128092950.

The spelling of 8077200720 in words is "eight billion, seventy-seven million, two hundred thousand, seven hundred twenty".