2727818640 has 160 divisors (see below), whose sum is σ = 9948648960. Its totient is φ = 684619776.

The previous prime is 2727818617. The next prime is 2727818669. The reversal of 2727818640 is 468187272.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 424 + ... + 73863.

It is an arithmetic number, because the mean of its divisors is an integer number (62179056).

Almost surely, 2^2727818640 is an apocalyptic number.

2727818640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2727818640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4974324480).

2727818640 is an abundant number, since it is smaller than the sum of its proper divisors (7220830320).

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

2727818640 is a wasteful number, since it uses less digits than its factorization.

2727818640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74326 (or 74314 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 2727818640 is about 52228.5232416158. The cubic root of 2727818640 is about 1397.2426408572.

The spelling of 2727818640 in words is "two billion, seven hundred twenty-seven million, eight hundred eighteen thousand, six hundred forty".