2481642138421 has 8 divisors (see below), whose sum is σ = 2492475638400. Its totient is φ = 2470819226832.

The previous prime is 2481642138403. The next prime is 2481642138431. The reversal of 2481642138421 is 1248312461842.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2481642138421 - 2²⁵ = 2481608583989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2481642138431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2177146 + ... + 3115003.

It is an arithmetic number, because the mean of its divisors is an integer number (311559454800).

Almost surely, 2^{2481642138421} is an apocalyptic number.

It is an amenable number.

2481642138421 is a deficient number, since it is larger than the sum of its proper divisors (10833499979).

2481642138421 is a wasteful number, since it uses less digits than its factorization.

2481642138421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5294195.

The product of its digits is 589824, while the sum is 46.

The spelling of 2481642138421 in words is "two trillion, four hundred eighty-one billion, six hundred forty-two million, one hundred thirty-eight thousand, four hundred twenty-one".