2606799157 has 2 divisors, whose sum is σ = 2606799158. Its totient is φ = 2606799156.

The previous prime is 2606799149. The next prime is 2606799203. The reversal of 2606799157 is 7519976062.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2508907921 + 97891236 = 50089^2 + 9894^2 .

It is a cyclic number.

It is not a de Polignac number, because 2606799157 - 2³ = 2606799149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2606799257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1303399578 + 1303399579.

It is an arithmetic number, because the mean of its divisors is an integer number (1303399579).

Almost surely, 2^2606799157 is an apocalyptic number.

It is an amenable number.

2606799157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2606799157 is an equidigital number, since it uses as much as digits as its factorization.

2606799157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1428840, while the sum is 52.

The square root of 2606799157 is about 51056.8228251622. The cubic root of 2606799157 is about 1376.2664531335.

The spelling of 2606799157 in words is "two billion, six hundred six million, seven hundred ninety-nine thousand, one hundred fifty-seven".