2521043768 has 16 divisors (see below), whose sum is σ = 4730154000. Its totient is φ = 1259669376.

The previous prime is 2521043761. The next prime is 2521043801. The reversal of 2521043768 is 8673401252.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521043761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93908 + ... + 117731.

It is an arithmetic number, because the mean of its divisors is an integer number (295634625).

Almost surely, 2^2521043768 is an apocalyptic number.

It is an amenable number.

2521043768 is a deficient number, since it is larger than the sum of its proper divisors (2209110232).

2521043768 is a wasteful number, since it uses less digits than its factorization.

2521043768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213134 (or 213130 counting only the distinct ones).

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

The square root of 2521043768 is about 50209.9966938856. The cubic root of 2521043768 is about 1361.0062780406.

The spelling of 2521043768 in words is "two billion, five hundred twenty-one million, forty-three thousand, seven hundred sixty-eight".