2542655984 has 80 divisors (see below), whose sum is σ = 5537297376. Its totient is φ = 1120896000.

The previous prime is 2542655933. The next prime is 2542655987. The reversal of 2542655984 is 4895562452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542655987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3626834 + ... + 3627534.

Almost surely, 2^2542655984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2542655984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2768648688).

2542655984 is an abundant number, since it is smaller than the sum of its proper divisors (2994641392).

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

2542655984 is a wasteful number, since it uses less digits than its factorization.

2542655984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314 (or 1308 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 50.

The square root of 2542655984 is about 50424.7556662400. The cubic root of 2542655984 is about 1364.8843947588.

The spelling of 2542655984 in words is "two billion, five hundred forty-two million, six hundred fifty-five thousand, nine hundred eighty-four".