2689948847 has 4 divisors (see below), whose sum is σ = 2690197776. Its totient is φ = 2689699920.

The previous prime is 2689948843. The next prime is 2689948861. The reversal of 2689948847 is 7488499862.

2689948847 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2689948847 - 2² = 2689948843 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 (2689948843) 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, 107483 + ... + 130124.

It is an arithmetic number, because the mean of its divisors is an integer number (672549444).

Almost surely, 2^2689948847 is an apocalyptic number.

2689948847 is a deficient number, since it is larger than the sum of its proper divisors (248929).

2689948847 is a wasteful number, since it uses less digits than its factorization.

2689948847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248928.

The product of its digits is 55738368, while the sum is 65.

The square root of 2689948847 is about 51864.7167831851. The cubic root of 2689948847 is about 1390.7466007923.

The spelling of 2689948847 in words is "two billion, six hundred eighty-nine million, nine hundred forty-eight thousand, eight hundred forty-seven".