2868738947 has 4 divisors (see below), whose sum is σ = 2870212800. Its totient is φ = 2867265096.

The previous prime is 2868738941. The next prime is 2868738949. The reversal of 2868738947 is 7498378682.

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 2868738947 - 2⁴ = 2868738931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2868738947.

It is not an unprimeable number, because it can be changed into a prime (2868738941) 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, 734003 + ... + 737900.

It is an arithmetic number, because the mean of its divisors is an integer number (717553200).

Almost surely, 2^2868738947 is an apocalyptic number.

2868738947 is a deficient number, since it is larger than the sum of its proper divisors (1473853).

2868738947 is a wasteful number, since it uses less digits than its factorization.

2868738947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473852.

The product of its digits is 32514048, while the sum is 62.

The square root of 2868738947 is about 53560.6100320002. The cubic root of 2868738947 is about 1420.9005309128.

The spelling of 2868738947 in words is "two billion, eight hundred sixty-eight million, seven hundred thirty-eight thousand, nine hundred forty-seven".