2642893891 has 8 divisors (see below), whose sum is σ = 2883672000. Its totient is φ = 2402201640.

The previous prime is 2642893879. The next prime is 2642893909. The reversal of 2642893891 is 1983982462.

2642893891 is digitally balanced in base 2, because in such base 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 a cyclic number.

It is not a de Polignac number, because 2642893891 - 2¹⁹ = 2642369603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2642893291) 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, 54660 + ... + 90958.

It is an arithmetic number, because the mean of its divisors is an integer number (360459000).

Almost surely, 2^2642893891 is an apocalyptic number.

2642893891 is a deficient number, since it is larger than the sum of its proper divisors (240778109).

2642893891 is a wasteful number, since it uses less digits than its factorization.

2642893891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42929.

The product of its digits is 1492992, while the sum is 52.

The square root of 2642893891 is about 51409.0837401329. The cubic root of 2642893891 is about 1382.5894618850.

The spelling of 2642893891 in words is "two billion, six hundred forty-two million, eight hundred ninety-three thousand, eight hundred ninety-one".