2688011157 has 8 divisors (see below), whose sum is σ = 3859708384. Its totient is φ = 1654160688.

The previous prime is 2688011153. The next prime is 2688011213. The reversal of 2688011157 is 7511108862.

2688011157 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2688011157 - 2² = 2688011153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 68923363 = 2688011157 / (2 + 6 + 8 + 8 + 0 + 1 + 1 + 1 + 5 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2688011153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34461643 + ... + 34461720.

It is an arithmetic number, because the mean of its divisors is an integer number (482463548).

Almost surely, 2^2688011157 is an apocalyptic number.

It is an amenable number.

2688011157 is a deficient number, since it is larger than the sum of its proper divisors (1171697227).

2688011157 is a wasteful number, since it uses less digits than its factorization.

2688011157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68923379.

The product of its (nonzero) digits is 26880, while the sum is 39.

The square root of 2688011157 is about 51846.0331848060. The cubic root of 2688011157 is about 1390.4125816637.

The spelling of 2688011157 in words is "two billion, six hundred eighty-eight million, eleven thousand, one hundred fifty-seven".