2720946237461 has 2 divisors, whose sum is σ = 2720946237462. Its totient is φ = 2720946237460.

The previous prime is 2720946237407. The next prime is 2720946237473. The reversal of 2720946237461 is 1647326490272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2448755522500 + 272190714961 = 1564850^2 + 521719^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2720946237461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2720946237481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360473118730 + 1360473118731.

It is an arithmetic number, because the mean of its divisors is an integer number (1360473118731).

Almost surely, 2^{2720946237461} is an apocalyptic number.

It is an amenable number.

2720946237461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2720946237461 is an equidigital number, since it uses as much as digits as its factorization.

2720946237461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6096384, while the sum is 53.

The spelling of 2720946237461 in words is "two trillion, seven hundred twenty billion, nine hundred forty-six million, two hundred thirty-seven thousand, four hundred sixty-one".