2730492737261 has 2 divisors, whose sum is σ = 2730492737262. Its totient is φ = 2730492737260.

The previous prime is 2730492737239. The next prime is 2730492737299. The reversal of 2730492737261 is 1627372940372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1653268782025 + 1077223955236 = 1285795^2 + 1037894^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2730492737261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2730492737461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365246368630 + 1365246368631.

It is an arithmetic number, because the mean of its divisors is an integer number (1365246368631).

Almost surely, 2^{2730492737261} is an apocalyptic number.

It is an amenable number.

2730492737261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2730492737261 is an equidigital number, since it uses as much as digits as its factorization.

2730492737261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5334336, while the sum is 53.

The spelling of 2730492737261 in words is "two trillion, seven hundred thirty billion, four hundred ninety-two million, seven hundred thirty-seven thousand, two hundred sixty-one".