2811948892 has 24 divisors (see below), whose sum is σ = 4950000720. Its totient is φ = 1397679360.

The previous prime is 2811948857. The next prime is 2811948907. The reversal of 2811948892 is 2988491182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076484 + ... + 1079092.

It is an arithmetic number, because the mean of its divisors is an integer number (206250030).

Almost surely, 2^2811948892 is an apocalyptic number.

It is an amenable number.

2811948892 is a deficient number, since it is larger than the sum of its proper divisors (2138051828).

2811948892 is a wasteful number, since it uses less digits than its factorization.

2811948892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4101 (or 4099 counting only the distinct ones).

The product of its digits is 663552, while the sum is 52.

The square root of 2811948892 is about 53027.8124383799. The cubic root of 2811948892 is about 1411.4618395240.

The spelling of 2811948892 in words is "two billion, eight hundred eleven million, nine hundred forty-eight thousand, eight hundred ninety-two".