2606889628 has 18 divisors (see below), whose sum is σ = 5214319656. Its totient is φ = 1117122624.

The previous prime is 2606889613. The next prime is 2606889631. The reversal of 2606889628 is 8269886062.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 265348 + ... + 274996.

Almost surely, 2^2606889628 is an apocalyptic number.

2606889628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2606889628 is an abundant number, since it is smaller than the sum of its proper divisors (2607430028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2606889628 is an frugal number, since it uses more digits than its factorization.

2606889628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19309 (or 9658 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 55.

The square root of 2606889628 is about 51057.7088009245. The cubic root of 2606889628 is about 1376.2823744166.

The spelling of 2606889628 in words is "two billion, six hundred six million, eight hundred eighty-nine thousand, six hundred twenty-eight".