2740001946509 has 2 divisors, whose sum is σ = 2740001946510. Its totient is φ = 2740001946508.

The previous prime is 2740001946503. The next prime is 2740001946551. The reversal of 2740001946509 is 9056491000472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1657823629225 + 1082178317284 = 1287565^2 + 1040278^2 .

It is a cyclic number.

It is not a de Polignac number, because 2740001946509 - 2³⁶ = 2671282469773 is a prime.

It is a super-2 number, since 2×2740001946509² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2740001946503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1370000973254 + 1370000973255.

It is an arithmetic number, because the mean of its divisors is an integer number (1370000973255).

Almost surely, 2^{2740001946509} is an apocalyptic number.

It is an amenable number.

2740001946509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2740001946509 is an equidigital number, since it uses as much as digits as its factorization.

2740001946509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 2740001946509 in words is "two trillion, seven hundred forty billion, one million, nine hundred forty-six thousand, five hundred nine".