2578535480 has 32 divisors (see below), whose sum is σ = 5861525040. Its totient is φ = 1020779520.

The previous prime is 2578535473. The next prime is 2578535527. The reversal of 2578535480 is 845358752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328406 + ... + 336165.

Almost surely, 2^2578535480 is an apocalyptic number.

2578535480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2578535480 is an abundant number, since it is smaller than the sum of its proper divisors (3282989560).

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

2578535480 is a wasteful number, since it uses less digits than its factorization.

2578535480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664679 (or 664675 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 47.

The square root of 2578535480 is about 50779.2819957116. The cubic root of 2578535480 is about 1371.2744068812.

The spelling of 2578535480 in words is "two billion, five hundred seventy-eight million, five hundred thirty-five thousand, four hundred eighty".