2581423514000 has 80 divisors (see below), whose sum is σ = 6609051676656. Its totient is φ = 971830016000.

The previous prime is 2581423513913. The next prime is 2581423514009. The reversal of 2581423514000 is 4153241852.

It can be written as a sum of positive squares in 8 ways, for example, as 576967853056 + 2004455660944 = 759584^2 + 1415788^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (2581423514009) 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, 37928111 + ... + 37996110.

Almost surely, 2^{2581423514000} is an apocalyptic number.

2581423514000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2581423514000 is an abundant number, since it is smaller than the sum of its proper divisors (4027628162656).

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

2581423514000 is a wasteful number, since it uses less digits than its factorization.

2581423514000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75924261 (or 75924245 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 2581423514000 its reverse (4153241852), we get a palindrome (2585576755852).

The spelling of 2581423514000 in words is "two trillion, five hundred eighty-one billion, four hundred twenty-three million, five hundred fourteen thousand".