2730942891 has 8 divisors (see below), whose sum is σ = 4045841360. Its totient is φ = 1820628576.

The previous prime is 2730942887. The next prime is 2730942919. The reversal of 2730942891 is 1982490372.

2730942891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2730942891 - 2² = 2730942887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2730942811) 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, 50572990 + ... + 50573043.

It is an arithmetic number, because the mean of its divisors is an integer number (505730170).

Almost surely, 2^2730942891 is an apocalyptic number.

2730942891 is a deficient number, since it is larger than the sum of its proper divisors (1314898469).

2730942891 is a wasteful number, since it uses less digits than its factorization.

2730942891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101146042 (or 101146036 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 2730942891 is about 52258.4241151606. The cubic root of 2730942891 is about 1397.7758717120.

The spelling of 2730942891 in words is "two billion, seven hundred thirty million, nine hundred forty-two thousand, eight hundred ninety-one".