2791470816 has 96 divisors (see below), whose sum is σ = 8216762400. Its totient is φ = 921922560.

The previous prime is 2791470797. The next prime is 2791470821. The reversal of 2791470816 is 6180741972.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79356 + ... + 108996.

It is an arithmetic number, because the mean of its divisors is an integer number (85591275).

Almost surely, 2^2791470816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2791470816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4108381200).

2791470816 is an abundant number, since it is smaller than the sum of its proper divisors (5425291584).

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

2791470816 is a wasteful number, since it uses less digits than its factorization.

2791470816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29769 (or 29755 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 2791470816 is about 52834.3715397467. The cubic root of 2791470816 is about 1408.0271549084.

The spelling of 2791470816 in words is "two billion, seven hundred ninety-one million, four hundred seventy thousand, eight hundred sixteen".