2628820450517 has 4 divisors (see below), whose sum is σ = 2684752800576. Its totient is φ = 2572888100460.

The previous prime is 2628820450493. The next prime is 2628820450573. The reversal of 2628820450517 is 7150540288262.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2628820450517 - 2⁶ = 2628820450453 is a prime.

It is a super-2 number, since 2×2628820450517² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2628820450117) 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, 27966174959 + ... + 27966175052.

It is an arithmetic number, because the mean of its divisors is an integer number (671188200144).

Almost surely, 2^{2628820450517} is an apocalyptic number.

It is an amenable number.

2628820450517 is a deficient number, since it is larger than the sum of its proper divisors (55932350059).

2628820450517 is an equidigital number, since it uses as much as digits as its factorization.

2628820450517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55932350058.

The product of its (nonzero) digits is 2150400, while the sum is 50.

The spelling of 2628820450517 in words is "two trillion, six hundred twenty-eight billion, eight hundred twenty million, four hundred fifty thousand, five hundred seventeen".