2628619677 has 6 divisors (see below), whose sum is σ = 3796895102. Its totient is φ = 1752413112.

The previous prime is 2628619597. The next prime is 2628619691. The reversal of 2628619677 is 7769168262.

2628619677 is a `hidden beast` number, since 2 + 628 + 6 + 1 + 9 + 6 + 7 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1990855161 + 637764516 = 44619^2 + 25254^2 .

It is not a de Polignac number, because 2628619677 - 2¹⁹ = 2628095389 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 (2628618677) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 146034418 + ... + 146034435.

Almost surely, 2^2628619677 is an apocalyptic number.

It is an amenable number.

2628619677 is a deficient number, since it is larger than the sum of its proper divisors (1168275425).

2628619677 is a wasteful number, since it uses less digits than its factorization.

2628619677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292068859 (or 292068856 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 2628619677 is about 51270.0660912389. The cubic root of 2628619677 is about 1380.0958550305.

The spelling of 2628619677 in words is "two billion, six hundred twenty-eight million, six hundred nineteen thousand, six hundred seventy-seven".