2791057408 has 48 divisors (see below), whose sum is σ = 5731738740. Its totient is φ = 1357774848.

The previous prime is 2791057397. The next prime is 2791057427. The reversal of 2791057408 is 8047501972.

It can be written as a sum of positive squares in 2 ways, for example, as 2757510144 + 33547264 = 52512^2 + 5792^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57360 + ... + 94192.

Almost surely, 2^2791057408 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 2791057408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2865869370).

2791057408 is an abundant number, since it is smaller than the sum of its proper divisors (2940681332).

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

2791057408 is an equidigital number, since it uses as much as digits as its factorization.

2791057408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36892 (or 36872 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 2791057408 is about 52830.4590932163. The cubic root of 2791057408 is about 1407.9576433539.

The spelling of 2791057408 in words is "two billion, seven hundred ninety-one million, fifty-seven thousand, four hundred eight".