2811148380 has 72 divisors (see below), whose sum is σ = 8533102032. Its totient is φ = 749116416.

The previous prime is 2811148337. The next prime is 2811148381. The reversal of 2811148380 is 838411182.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2811148381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 300859 + ... + 310061.

It is an arithmetic number, because the mean of its divisors is an integer number (118515306).

Almost surely, 2^2811148380 is an apocalyptic number.

2811148380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2811148380 is an abundant number, since it is smaller than the sum of its proper divisors (5721953652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2811148380 is a wasteful number, since it uses less digits than its factorization.

2811148380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10915 (or 10910 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 2811148380 is about 53020.2638620367. The cubic root of 2811148380 is about 1411.3278874240.

The spelling of 2811148380 in words is "two billion, eight hundred eleven million, one hundred forty-eight thousand, three hundred eighty".