2628421797 has 8 divisors (see below), whose sum is σ = 3504826080. Its totient is φ = 1752149360.

The previous prime is 2628421709. The next prime is 2628421811. The reversal of 2628421797 is 7971248262.

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 2628421797 - 2⁸ = 2628421541 is a prime.

It is a super-2 number, since 2×2628421797² = 13817202285889418418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2628421897) 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, 31654 + ... + 79112.

It is an arithmetic number, because the mean of its divisors is an integer number (438103260).

Almost surely, 2^2628421797 is an apocalyptic number.

It is an amenable number.

2628421797 is a deficient number, since it is larger than the sum of its proper divisors (876404283).

2628421797 is a wasteful number, since it uses less digits than its factorization.

2628421797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65923.

The product of its digits is 677376, while the sum is 48.

The square root of 2628421797 is about 51268.1362739080. The cubic root of 2628421797 is about 1380.0612233918.

The spelling of 2628421797 in words is "two billion, six hundred twenty-eight million, four hundred twenty-one thousand, seven hundred ninety-seven".