2766180726540 has 1728 divisors, whose sum is σ = 11524441743360. Its totient is φ = 544419532800.

The previous prime is 2766180726527. The next prime is 2766180726541. The reversal of 2766180726540 is 456270816672.

It is a happy number.

2766180726540 is a `hidden beast` number, since 2 + 7 + 66 + 18 + 0 + 7 + 26 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2766180726541) by changing a digit.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 6763277856 + ... + 6763278264.

It is an arithmetic number, because the mean of its divisors is an integer number (6669237120).

Almost surely, 2^{2766180726540} is an apocalyptic number.

2766180726540 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 2766180726540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5762220871680).

2766180726540 is an abundant number, since it is smaller than the sum of its proper divisors (8758261016820).

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

2766180726540 is a wasteful number, since it uses less digits than its factorization.

2766180726540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 2766180726540 in words is "two trillion, seven hundred sixty-six billion, one hundred eighty million, seven hundred twenty-six thousand, five hundred forty".