2640027525140 has 12 divisors (see below), whose sum is σ = 5544057802836. Its totient is φ = 1056011010048.

The previous prime is 2640027525103. The next prime is 2640027525169. The reversal of 2640027525140 is 415257200462.

It can be written as a sum of positive squares in 2 ways, for example, as 870776387716 + 1769251137424 = 933154^2 + 1330132^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2640027525094 and 2640027525103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66000688109 + ... + 66000688148.

It is an arithmetic number, because the mean of its divisors is an integer number (462004816903).

Almost surely, 2^{2640027525140} is an apocalyptic number.

2640027525140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2640027525140 is an abundant number, since it is smaller than the sum of its proper divisors (2904030277696).

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

2640027525140 is a wasteful number, since it uses less digits than its factorization.

2640027525140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132001376266 (or 132001376264 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 38.

The spelling of 2640027525140 in words is "two trillion, six hundred forty billion, twenty-seven million, five hundred twenty-five thousand, one hundred forty".