2544198078 has 48 divisors (see below), whose sum is σ = 5473134720. Its totient is φ = 786258864.

The previous prime is 2544198047. The next prime is 2544198079. The reversal of 2544198078 is 8708914452.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2544198079) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 246775 + ... + 256877.

It is an arithmetic number, because the mean of its divisors is an integer number (114023640).

Almost surely, 2^2544198078 is an apocalyptic number.

2544198078 is an abundant number, since it is smaller than the sum of its proper divisors (2928936642).

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

2544198078 is a wasteful number, since it uses less digits than its factorization.

2544198078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10221 (or 10174 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 2544198078 is about 50440.0443893540. The cubic root of 2544198078 is about 1365.1602683183.

The spelling of 2544198078 in words is "two billion, five hundred forty-four million, one hundred ninety-eight thousand, seventy-eight".