8120774000 has 40 divisors (see below), whose sum is σ = 19636036368. Its totient is φ = 3248308800.

The previous prime is 8120773961. The next prime is 8120774009. The reversal of 8120774000 is 4770218.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8120774009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2028194 + ... + 2032193.

Almost surely, 2^8120774000 is an apocalyptic number.

8120774000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8120774000 is an abundant number, since it is smaller than the sum of its proper divisors (11515262368).

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

8120774000 is a wasteful number, since it uses less digits than its factorization.

8120774000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4060410 (or 4060394 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 8120774000 is about 90115.3372073811. The cubic root of 8120774000 is about 2010.0142734727.

The spelling of 8120774000 in words is "eight billion, one hundred twenty million, seven hundred seventy-four thousand".