2766492840 has 64 divisors (see below), whose sum is σ = 8330428800. Its totient is φ = 734980352.

The previous prime is 2766492829. The next prime is 2766492847. The reversal of 2766492840 is 482946672.

It is a self number, because there is not a number n which added to its sum of digits gives 2766492840.

It is not an unprimeable number, because it can be changed into a prime (2766492847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10572 + ... + 75131.

It is an arithmetic number, because the mean of its divisors is an integer number (130162950).

Almost surely, 2^2766492840 is an apocalyptic number.

2766492840 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 2766492840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4165214400).

2766492840 is an abundant number, since it is smaller than the sum of its proper divisors (5563935960).

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

2766492840 is a wasteful number, since it uses less digits than its factorization.

2766492840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85986 (or 85982 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The square root of 2766492840 is about 52597.4603949658. The cubic root of 2766492840 is about 1403.8149081087.

The spelling of 2766492840 in words is "two billion, seven hundred sixty-six million, four hundred ninety-two thousand, eight hundred forty".