4945376891 has 24 divisors (see below), whose sum is σ = 6559751520. Its totient is φ = 3682651392.

The previous prime is 4945376879. The next prime is 4945376893. The reversal of 4945376891 is 1986735494.

It is not a de Polignac number, because 4945376891 - 2¹⁰ = 4945375867 is a prime.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (4945376893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217511 + ... + 239168.

It is an arithmetic number, because the mean of its divisors is an integer number (273322980).

Almost surely, 2^4945376891 is an apocalyptic number.

4945376891 is a deficient number, since it is larger than the sum of its proper divisors (1614374629).

4945376891 is a wasteful number, since it uses less digits than its factorization.

4945376891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456723 (or 456716 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 56.

The square root of 4945376891 is about 70323.3737174206. The cubic root of 4945376891 is about 1703.7261855277.

The spelling of 4945376891 in words is "four billion, nine hundred forty-five million, three hundred seventy-six thousand, eight hundred ninety-one".