2687741251 has 4 divisors (see below), whose sum is σ = 2894490592. Its totient is φ = 2480991912.

The previous prime is 2687741233. The next prime is 2687741299. The reversal of 2687741251 is 1521477862.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2687741251 - 2²⁵ = 2654186819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2687741198 and 2687741207.

It is not an unprimeable number, because it can be changed into a prime (2687741351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103374651 + ... + 103374676.

It is an arithmetic number, because the mean of its divisors is an integer number (723622648).

Almost surely, 2^2687741251 is an apocalyptic number.

2687741251 is a deficient number, since it is larger than the sum of its proper divisors (206749341).

2687741251 is a wasteful number, since it uses less digits than its factorization.

2687741251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206749340.

The product of its digits is 188160, while the sum is 43.

The square root of 2687741251 is about 51843.4301623648. The cubic root of 2687741251 is about 1390.3660425141.

The spelling of 2687741251 in words is "two billion, six hundred eighty-seven million, seven hundred forty-one thousand, two hundred fifty-one".