2611788520 has 32 divisors (see below), whose sum is σ = 6410754720. Its totient is φ = 949741120.

The previous prime is 2611788511. The next prime is 2611788521. The reversal of 2611788520 is 258871162.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (2611788521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2967502 + ... + 2968381.

It is an arithmetic number, because the mean of its divisors is an integer number (200336085).

Almost surely, 2^2611788520 is an apocalyptic number.

2611788520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2611788520 is an abundant number, since it is smaller than the sum of its proper divisors (3798966200).

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

2611788520 is a wasteful number, since it uses less digits than its factorization.

2611788520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5935905 (or 5935901 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 2611788520 is about 51105.6603518632. The cubic root of 2611788520 is about 1377.1439426334.

The spelling of 2611788520 in words is "two billion, six hundred eleven million, seven hundred eighty-eight thousand, five hundred twenty".