2612742257 has 8 divisors (see below), whose sum is σ = 2772859392. Its totient is φ = 2453339200.

The previous prime is 2612742233. The next prime is 2612742287. The reversal of 2612742257 is 7522472162.

It is a happy number.

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 2612742257 - 2²⁰ = 2611693681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2612742257.

It is not an unprimeable number, because it can be changed into a prime (2612742287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170969 + ... + 185622.

It is an arithmetic number, because the mean of its divisors is an integer number (346607424).

Almost surely, 2^2612742257 is an apocalyptic number.

It is an amenable number.

2612742257 is a deficient number, since it is larger than the sum of its proper divisors (160117135).

2612742257 is a wasteful number, since it uses less digits than its factorization.

2612742257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357039.

The product of its digits is 94080, while the sum is 38.

The square root of 2612742257 is about 51114.9905311544. The cubic root of 2612742257 is about 1377.3115510597.

The spelling of 2612742257 in words is "two billion, six hundred twelve million, seven hundred forty-two thousand, two hundred fifty-seven".