2543684880 has 160 divisors (see below), whose sum is σ = 8835113088. Its totient is φ = 599961600.

The previous prime is 2543684879. The next prime is 2543684903. The reversal of 2543684880 is 884863452.

It is a super-2 number, since 2×2543684880² = 12940665537481228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84660 + ... + 110700.

Almost surely, 2^2543684880 is an apocalyptic number.

2543684880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2543684880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4417556544).

2543684880 is an abundant number, since it is smaller than the sum of its proper divisors (6291428208).

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

2543684880 is a wasteful number, since it uses less digits than its factorization.

2543684880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26105 (or 26099 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 48.

The square root of 2543684880 is about 50434.9569247362. The cubic root of 2543684880 is about 1365.0684719238.

The spelling of 2543684880 in words is "two billion, five hundred forty-three million, six hundred eighty-four thousand, eight hundred eighty".