2606654957 has 6 divisors (see below), whose sum is σ = 2656215882. Its totient is φ = 2557108112.

The previous prime is 2606654917. The next prime is 2606654977. The reversal of 2606654957 is 7594566062.

It can be written as a sum of positive squares in 3 ways, for example, as 1557801961 + 1048852996 = 39469^2 + 32386^2 .

It is not a de Polignac number, because 2606654957 - 2⁶ = 2606654893 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 (2606654917) 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, 368183 + ... + 375195.

It is an arithmetic number, because the mean of its divisors is an integer number (442702647).

Almost surely, 2^2606654957 is an apocalyptic number.

It is an amenable number.

2606654957 is a deficient number, since it is larger than the sum of its proper divisors (49560925).

2606654957 is an frugal number, since it uses more digits than its factorization.

2606654957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14079 (or 7066 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 50.

The square root of 2606654957 is about 51055.4106535243. The cubic root of 2606654957 is about 1376.2410757428.

The spelling of 2606654957 in words is "two billion, six hundred six million, six hundred fifty-four thousand, nine hundred fifty-seven".