2119115540 has 48 divisors (see below), whose sum is σ = 4518596880. Its totient is φ = 834647040.

The previous prime is 2119115533. The next prime is 2119115561. The reversal of 2119115540 is 455119112.

It can be written as a sum of positive squares in 8 ways, for example, as 570063376 + 1549052164 = 23876^2 + 39358^2 .

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, 1723646 + ... + 1724874.

It is an arithmetic number, because the mean of its divisors is an integer number (94137435).

Almost surely, 2^2119115540 is an apocalyptic number.

2119115540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2119115540 is an abundant number, since it is smaller than the sum of its proper divisors (2399481340).

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

2119115540 is a wasteful number, since it uses less digits than its factorization.

2119115540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492 (or 2490 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 29.

The square root of 2119115540 is about 46033.8521090729. The cubic root of 2119115540 is about 1284.4529842282.

The spelling of 2119115540 in words is "two billion, one hundred nineteen million, one hundred fifteen thousand, five hundred forty".