2863145720 has 32 divisors (see below), whose sum is σ = 6781136400. Its totient is φ = 1084981248.

The previous prime is 2863145713. The next prime is 2863145723. The reversal of 2863145720 is 275413682.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2863145723) 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, 1882889 + ... + 1884408.

Almost surely, 2^2863145720 is an apocalyptic number.

2863145720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2863145720 is an abundant number, since it is smaller than the sum of its proper divisors (3917990680).

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

2863145720 is a wasteful number, since it uses less digits than its factorization.

2863145720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3767327 (or 3767323 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 2863145720 is about 53508.3705601283. The cubic root of 2863145720 is about 1419.9764791449.

The spelling of 2863145720 in words is "two billion, eight hundred sixty-three million, one hundred forty-five thousand, seven hundred twenty".