2528518778 has 8 divisors (see below), whose sum is σ = 3829601568. Its totient is φ = 1251984924.

The previous prime is 2528518771. The next prime is 2528518781. The reversal of 2528518778 is 8778158252.

2528518778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2528518778² = 12786814421397226568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2528518771) 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, 6136976 + ... + 6137387.

It is an arithmetic number, because the mean of its divisors is an integer number (478700196).

Almost surely, 2^2528518778 is an apocalyptic number.

2528518778 is a deficient number, since it is larger than the sum of its proper divisors (1301082790).

2528518778 is a wasteful number, since it uses less digits than its factorization.

2528518778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12274468.

The product of its digits is 2508800, while the sum is 53.

The square root of 2528518778 is about 50284.3790654712. The cubic root of 2528518778 is about 1362.3500993575.

The spelling of 2528518778 in words is "two billion, five hundred twenty-eight million, five hundred eighteen thousand, seven hundred seventy-eight".