2542479688 has 16 divisors (see below), whose sum is σ = 5448170880. Its totient is φ = 1089634128.

The previous prime is 2542479647. The next prime is 2542479689. The reversal of 2542479688 is 8869742452.

It is not an unprimeable number, because it can be changed into a prime (2542479689) 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, 22700656 + ... + 22700767.

It is an arithmetic number, because the mean of its divisors is an integer number (340510680).

Almost surely, 2^2542479688 is an apocalyptic number.

2542479688 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2542479688 is an abundant number, since it is smaller than the sum of its proper divisors (2905691192).

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

2542479688 is a wasteful number, since it uses less digits than its factorization.

2542479688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45401436 (or 45401432 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 55.

The square root of 2542479688 is about 50423.0075263267. The cubic root of 2542479688 is about 1364.8528491071.

The spelling of 2542479688 in words is "two billion, five hundred forty-two million, four hundred seventy-nine thousand, six hundred eighty-eight".