2821028261798 has 8 divisors (see below), whose sum is σ = 4245061698408. Its totient is φ = 1406007695664.

The previous prime is 2821028261791. The next prime is 2821028261839. The reversal of 2821028261798 is 8971628201282.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2821028261791) 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, 2253216836 + ... + 2253218087.

It is an arithmetic number, because the mean of its divisors is an integer number (530632712301).

Almost surely, 2^{2821028261798} is an apocalyptic number.

2821028261798 is a deficient number, since it is larger than the sum of its proper divisors (1424033436610).

2821028261798 is a wasteful number, since it uses less digits than its factorization.

2821028261798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4506435238.

The product of its (nonzero) digits is 3096576, while the sum is 56.

The spelling of 2821028261798 in words is "two trillion, eight hundred twenty-one billion, twenty-eight million, two hundred sixty-one thousand, seven hundred ninety-eight".