2721345140740 has 12 divisors (see below), whose sum is σ = 5714824795596. Its totient is φ = 1088538056288.

The previous prime is 2721345140737. The next prime is 2721345140797. The reversal of 2721345140740 is 470415431272.

It is a happy number.

2721345140740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1227557634304 + 1493787506436 = 1107952^2 + 1222206^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2721345140693 and 2721345140702.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68033628499 + ... + 68033628538.

It is an arithmetic number, because the mean of its divisors is an integer number (476235399633).

Almost surely, 2^{2721345140740} is an apocalyptic number.

2721345140740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2721345140740 is an abundant number, since it is smaller than the sum of its proper divisors (2993479654856).

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

2721345140740 is a wasteful number, since it uses less digits than its factorization.

2721345140740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136067257046 (or 136067257044 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 40.

The spelling of 2721345140740 in words is "two trillion, seven hundred twenty-one billion, three hundred forty-five million, one hundred forty thousand, seven hundred forty".