2528698464 has 72 divisors (see below), whose sum is σ = 7312916520. Its totient is φ = 828607488.

The previous prime is 2528698433. The next prime is 2528698477. The reversal of 2528698464 is 4648968252.

It is a tau number, because it is divible by the number of its divisors (72).

It is a self number, because there is not a number n which added to its sum of digits gives 2528698464.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57417 + ... + 91400.

It is an arithmetic number, because the mean of its divisors is an integer number (101568285).

Almost surely, 2^2528698464 is an apocalyptic number.

2528698464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2528698464 is an abundant number, since it is smaller than the sum of its proper divisors (4784218056).

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

2528698464 is a wasteful number, since it uses less digits than its factorization.

2528698464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148892 (or 148881 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The square root of 2528698464 is about 50286.1657317398. The cubic root of 2528698464 is about 1362.3823698240.

The spelling of 2528698464 in words is "two billion, five hundred twenty-eight million, six hundred ninety-eight thousand, four hundred sixty-four".